diff --git a/packages/google_sign_in/google_sign_in_ios/CHANGELOG.md b/packages/google_sign_in/google_sign_in_ios/CHANGELOG.md
index 88ed91b01746..49f18ad9f308 100644
--- a/packages/google_sign_in/google_sign_in_ios/CHANGELOG.md
+++ b/packages/google_sign_in/google_sign_in_ios/CHANGELOG.md
@@ -1,5 +1,6 @@
-## NEXT
+## 5.8.0
 
+* Adds Swift Package Manager compatibility.
 * Updates minimum supported SDK version to Flutter 3.19/Dart 3.3.
 
 ## 5.7.6
diff --git a/packages/google_sign_in/google_sign_in_ios/darwin/Assets/.gitkeep b/packages/google_sign_in/google_sign_in_ios/darwin/Assets/.gitkeep
deleted file mode 100644
index e69de29bb2d1..000000000000
diff --git a/packages/google_sign_in/google_sign_in_ios/darwin/Tests/GoogleSignInTests.m b/packages/google_sign_in/google_sign_in_ios/darwin/Tests/GoogleSignInTests.m
index 1d49c9865f1c..6ec7f9088628 100644
--- a/packages/google_sign_in/google_sign_in_ios/darwin/Tests/GoogleSignInTests.m
+++ b/packages/google_sign_in/google_sign_in_ios/darwin/Tests/GoogleSignInTests.m
@@ -11,7 +11,9 @@
 
 @import XCTest;
 @import google_sign_in_ios;
+#if __has_include(<google_sign_in_ios/google_sign_in_ios-umbrella.h>)
 @import google_sign_in_ios.Test;
+#endif
 @import GoogleSignIn;
 
 // OCMock library doesn't generate a valid modulemap.
diff --git a/packages/google_sign_in/google_sign_in_ios/darwin/google_sign_in_ios.podspec b/packages/google_sign_in/google_sign_in_ios/darwin/google_sign_in_ios.podspec
index 4b3749d4f86f..d2abc7c07b98 100644
--- a/packages/google_sign_in/google_sign_in_ios/darwin/google_sign_in_ios.podspec
+++ b/packages/google_sign_in/google_sign_in_ios/darwin/google_sign_in_ios.podspec
@@ -13,8 +13,9 @@ Enables Google Sign-In in Flutter apps.
   s.author           = { 'Flutter Team' => 'flutter-dev@googlegroups.com' }
   s.source           = { :http => 'https://github.com/flutter/packages/tree/main/packages/google_sign_in/google_sign_in_ios' }
   s.source_files = 'Classes/**/*.{h,m}'
-  s.public_header_files = 'Classes/**/*.h'
-  s.module_map = 'Classes/FLTGoogleSignInPlugin.modulemap'
+  s.source_files = 'google_sign_in_ios/Sources/google_sign_in_ios/**/*.{h,m}'
+  s.public_header_files = 'google_sign_in_ios/Sources/google_sign_in_ios/include/**/*.h'
+  s.module_map = 'google_sign_in_ios/Sources/google_sign_in_ios/include/FLTGoogleSignInPlugin.modulemap'
 
   # AppAuth and GTMSessionFetcher are GoogleSignIn transitive dependencies.
   # Depend on versions which defines modules.
@@ -33,5 +34,5 @@ Enables Google Sign-In in Flutter apps.
   # GoogleSignIn depending a Swift pod (GTMAppAuth).
   s.swift_version = '5.0'
 
-  s.resource_bundles = {'google_sign_in_ios_privacy' => ['Resources/PrivacyInfo.xcprivacy']}
+  s.resource_bundles = {'google_sign_in_ios_privacy' => ['google_sign_in_ios/Sources/google_sign_in_ios/Resources/PrivacyInfo.xcprivacy']}
 end
diff --git a/packages/google_sign_in/google_sign_in_ios/darwin/google_sign_in_ios/Package.swift b/packages/google_sign_in/google_sign_in_ios/darwin/google_sign_in_ios/Package.swift
new file mode 100644
index 000000000000..3e5404f0adb9
--- /dev/null
+++ b/packages/google_sign_in/google_sign_in_ios/darwin/google_sign_in_ios/Package.swift
@@ -0,0 +1,52 @@
+// swift-tools-version: 5.9
+
+// Copyright 2013 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import PackageDescription
+
+let package = Package(
+  name: "google_sign_in_ios",
+  platforms: [
+    .iOS("12.0"),
+    .macOS("10.15"),
+  ],
+  products: [
+    .library(name: "google-sign-in-ios", targets: ["google_sign_in_ios"])
+  ],
+  dependencies: [
+    // AppAuth and GTMSessionFetcher are GoogleSignIn transitive dependencies.
+    // Depend on versions which define modules.
+    .package(
+      url: "https://github.com/openid/AppAuth-iOS.git",
+      from: "1.7.4"),
+    .package(
+      url: "https://github.com/google/gtm-session-fetcher.git",
+      from: "3.4.0"),
+    .package(
+      url: "https://github.com/google/GoogleSignIn-iOS.git",
+      from: "7.1.0"),
+  ],
+  targets: [
+    .target(
+      name: "google_sign_in_ios",
+      dependencies: [
+        .product(name: "GoogleSignIn", package: "GoogleSignIn-iOS")
+      ],
+      exclude: [
+        "include/google_sign_in_ios-umbrella.h", "include/FLTGoogleSignInPlugin.modulemap",
+      ],
+      resources: [
+        .process("Resources")
+      ],
+      cSettings: [
+        .headerSearchPath("include/google_sign_in_ios"),
+
+        // Ignore AppAuth's warnings.
+        // https://github.com/openid/AppAuth-iOS/issues/703
+        .unsafeFlags(["-w"]),
+      ]
+    )
+  ]
+)
diff --git a/packages/google_sign_in/google_sign_in_ios/darwin/Classes/FLTGoogleSignInPlugin.m b/packages/google_sign_in/google_sign_in_ios/darwin/google_sign_in_ios/Sources/google_sign_in_ios/FLTGoogleSignInPlugin.m
similarity index 99%
rename from packages/google_sign_in/google_sign_in_ios/darwin/Classes/FLTGoogleSignInPlugin.m
rename to packages/google_sign_in/google_sign_in_ios/darwin/google_sign_in_ios/Sources/google_sign_in_ios/FLTGoogleSignInPlugin.m
index 99ee0348f518..75d11b0264af 100644
--- a/packages/google_sign_in/google_sign_in_ios/darwin/Classes/FLTGoogleSignInPlugin.m
+++ b/packages/google_sign_in/google_sign_in_ios/darwin/google_sign_in_ios/Sources/google_sign_in_ios/FLTGoogleSignInPlugin.m
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#import "FLTGoogleSignInPlugin.h"
-#import "FLTGoogleSignInPlugin_Test.h"
+#import "./include/google_sign_in_ios/FLTGoogleSignInPlugin.h"
+#import "./include/google_sign_in_ios/FLTGoogleSignInPlugin_Test.h"
 
 #import <GoogleSignIn/GoogleSignIn.h>
 
diff --git a/packages/google_sign_in/google_sign_in_ios/darwin/Resources/PrivacyInfo.xcprivacy b/packages/google_sign_in/google_sign_in_ios/darwin/google_sign_in_ios/Sources/google_sign_in_ios/Resources/PrivacyInfo.xcprivacy
similarity index 100%
rename from packages/google_sign_in/google_sign_in_ios/darwin/Resources/PrivacyInfo.xcprivacy
rename to packages/google_sign_in/google_sign_in_ios/darwin/google_sign_in_ios/Sources/google_sign_in_ios/Resources/PrivacyInfo.xcprivacy
diff --git a/packages/google_sign_in/google_sign_in_ios/darwin/Classes/FLTGoogleSignInPlugin.modulemap b/packages/google_sign_in/google_sign_in_ios/darwin/google_sign_in_ios/Sources/google_sign_in_ios/include/FLTGoogleSignInPlugin.modulemap
similarity index 100%
rename from packages/google_sign_in/google_sign_in_ios/darwin/Classes/FLTGoogleSignInPlugin.modulemap
rename to packages/google_sign_in/google_sign_in_ios/darwin/google_sign_in_ios/Sources/google_sign_in_ios/include/FLTGoogleSignInPlugin.modulemap
diff --git a/packages/google_sign_in/google_sign_in_ios/darwin/Classes/google_sign_in_ios-umbrella.h b/packages/google_sign_in/google_sign_in_ios/darwin/google_sign_in_ios/Sources/google_sign_in_ios/include/google_sign_in_ios-umbrella.h
similarity index 100%
rename from packages/google_sign_in/google_sign_in_ios/darwin/Classes/google_sign_in_ios-umbrella.h
rename to packages/google_sign_in/google_sign_in_ios/darwin/google_sign_in_ios/Sources/google_sign_in_ios/include/google_sign_in_ios-umbrella.h
diff --git a/packages/google_sign_in/google_sign_in_ios/darwin/Classes/FLTGoogleSignInPlugin.h b/packages/google_sign_in/google_sign_in_ios/darwin/google_sign_in_ios/Sources/google_sign_in_ios/include/google_sign_in_ios/FLTGoogleSignInPlugin.h
similarity index 100%
rename from packages/google_sign_in/google_sign_in_ios/darwin/Classes/FLTGoogleSignInPlugin.h
rename to packages/google_sign_in/google_sign_in_ios/darwin/google_sign_in_ios/Sources/google_sign_in_ios/include/google_sign_in_ios/FLTGoogleSignInPlugin.h
diff --git a/packages/google_sign_in/google_sign_in_ios/darwin/Classes/FLTGoogleSignInPlugin_Test.h b/packages/google_sign_in/google_sign_in_ios/darwin/google_sign_in_ios/Sources/google_sign_in_ios/include/google_sign_in_ios/FLTGoogleSignInPlugin_Test.h
similarity index 100%
rename from packages/google_sign_in/google_sign_in_ios/darwin/Classes/FLTGoogleSignInPlugin_Test.h
rename to packages/google_sign_in/google_sign_in_ios/darwin/google_sign_in_ios/Sources/google_sign_in_ios/include/google_sign_in_ios/FLTGoogleSignInPlugin_Test.h
diff --git a/packages/google_sign_in/google_sign_in_ios/darwin/Classes/messages.g.h b/packages/google_sign_in/google_sign_in_ios/darwin/google_sign_in_ios/Sources/google_sign_in_ios/include/google_sign_in_ios/messages.g.h
similarity index 100%
rename from packages/google_sign_in/google_sign_in_ios/darwin/Classes/messages.g.h
rename to packages/google_sign_in/google_sign_in_ios/darwin/google_sign_in_ios/Sources/google_sign_in_ios/include/google_sign_in_ios/messages.g.h
diff --git a/packages/google_sign_in/google_sign_in_ios/darwin/Classes/messages.g.m b/packages/google_sign_in/google_sign_in_ios/darwin/google_sign_in_ios/Sources/google_sign_in_ios/messages.g.m
similarity index 99%
rename from packages/google_sign_in/google_sign_in_ios/darwin/Classes/messages.g.m
rename to packages/google_sign_in/google_sign_in_ios/darwin/google_sign_in_ios/Sources/google_sign_in_ios/messages.g.m
index 96d6b54232a5..2ec6ea32d0e1 100644
--- a/packages/google_sign_in/google_sign_in_ios/darwin/Classes/messages.g.m
+++ b/packages/google_sign_in/google_sign_in_ios/darwin/google_sign_in_ios/Sources/google_sign_in_ios/messages.g.m
@@ -4,7 +4,7 @@
 // Autogenerated from Pigeon (v11.0.1), do not edit directly.
 // See also: https://pub.dev/packages/pigeon
 
-#import "messages.g.h"
+#import "./include/google_sign_in_ios/messages.g.h"
 
 #if TARGET_OS_OSX
 #import <FlutterMacOS/FlutterMacOS.h>
diff --git a/packages/google_sign_in/google_sign_in_ios/example/ios/Podfile b/packages/google_sign_in/google_sign_in_ios/example/ios/Podfile
index 66f053d0a5e7..16330c1eb50e 100644
--- a/packages/google_sign_in/google_sign_in_ios/example/ios/Podfile
+++ b/packages/google_sign_in/google_sign_in_ios/example/ios/Podfile
@@ -26,8 +26,7 @@ end
 require File.expand_path(File.join('packages', 'flutter_tools', 'bin', 'podhelper'), flutter_root)
 
 # Suppress warnings from transitive dependencies that cause analysis to fail.
-pod 'AppAuth', :inhibit_warnings => true
-pod 'GTMAppAuth', :inhibit_warnings => true
+inhibit_all_warnings!
 
 flutter_ios_podfile_setup
 
@@ -35,8 +34,6 @@ target 'Runner' do
   flutter_install_all_ios_pods File.dirname(File.realpath(__FILE__))
   target 'RunnerTests' do
     inherit! :search_paths
-
-    pod 'OCMock','3.5'
   end
 end
 
diff --git a/packages/google_sign_in/google_sign_in_ios/example/ios/Runner.xcodeproj/project.pbxproj b/packages/google_sign_in/google_sign_in_ios/example/ios/Runner.xcodeproj/project.pbxproj
index 03e7451a827f..872fbded1f88 100644
--- a/packages/google_sign_in/google_sign_in_ios/example/ios/Runner.xcodeproj/project.pbxproj
+++ b/packages/google_sign_in/google_sign_in_ios/example/ios/Runner.xcodeproj/project.pbxproj
@@ -7,6 +7,7 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
+		403C71302C66A2E50034A230 /* OCMock in Frameworks */ = {isa = PBXBuildFile; productRef = 403C712F2C66A2E50034A230 /* OCMock */; };
 		5C6F5A6E1EC3B4CB008D64B5 /* GeneratedPluginRegistrant.m in Sources */ = {isa = PBXBuildFile; fileRef = 5C6F5A6D1EC3B4CB008D64B5 /* GeneratedPluginRegistrant.m */; };
 		78A36DA12AF5761E00CBFD43 /* GoogleService-Info.plist in Resources */ = {isa = PBXBuildFile; fileRef = 7A303C2D1E89D76400B1F19E /* GoogleService-Info.plist */; };
 		7ACDFB0E1E8944C400BE2D00 /* AppFrameworkInfo.plist in Resources */ = {isa = PBXBuildFile; fileRef = 7ACDFB0D1E8944C400BE2D00 /* AppFrameworkInfo.plist */; };
@@ -94,6 +95,7 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				403C71302C66A2E50034A230 /* OCMock in Frameworks */,
 				C56D3B06A42F3B35C1F47A43 /* libPods-RunnerTests.a in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
@@ -245,6 +247,9 @@
 				F76AC1A82666D0540040C8BC /* PBXTargetDependency */,
 			);
 			name = RunnerTests;
+			packageProductDependencies = (
+				403C712F2C66A2E50034A230 /* OCMock */,
+			);
 			productName = RunnerTests;
 			productReference = F76AC1A22666D0540040C8BC /* RunnerTests.xctest */;
 			productType = "com.apple.product-type.bundle.unit-test";
@@ -300,6 +305,9 @@
 				Base,
 			);
 			mainGroup = 97C146E51CF9000F007C117D;
+			packageReferences = (
+				403C712E2C66A2E50034A230 /* XCRemoteSwiftPackageReference "ocmock" */,
+			);
 			productRefGroup = 97C146EF1CF9000F007C117D /* Products */;
 			projectDirPath = "";
 			projectRoot = "";
@@ -766,6 +774,25 @@
 			defaultConfigurationName = Release;
 		};
 /* End XCConfigurationList section */
+
+/* Begin XCRemoteSwiftPackageReference section */
+		403C712E2C66A2E50034A230 /* XCRemoteSwiftPackageReference "ocmock" */ = {
+			isa = XCRemoteSwiftPackageReference;
+			repositoryURL = "https://github.com/erikdoe/ocmock";
+			requirement = {
+				kind = revision;
+				revision = fe1661a3efed11831a6452f4b1a0c5e6ddc08c3d;
+			};
+		};
+/* End XCRemoteSwiftPackageReference section */
+
+/* Begin XCSwiftPackageProductDependency section */
+		403C712F2C66A2E50034A230 /* OCMock */ = {
+			isa = XCSwiftPackageProductDependency;
+			package = 403C712E2C66A2E50034A230 /* XCRemoteSwiftPackageReference "ocmock" */;
+			productName = OCMock;
+		};
+/* End XCSwiftPackageProductDependency section */
 	};
 	rootObject = 97C146E61CF9000F007C117D /* Project object */;
 }
diff --git a/packages/google_sign_in/google_sign_in_ios/example/macos/Podfile b/packages/google_sign_in/google_sign_in_ios/example/macos/Podfile
index 39a6656a7742..b52666a10389 100644
--- a/packages/google_sign_in/google_sign_in_ios/example/macos/Podfile
+++ b/packages/google_sign_in/google_sign_in_ios/example/macos/Podfile
@@ -34,8 +34,6 @@ target 'Runner' do
   target 'RunnerTests' do
     inherit! :search_paths
   end
-
-  pod 'OCMock','3.5'
 end
 
 post_install do |installer|
diff --git a/packages/google_sign_in/google_sign_in_ios/example/macos/Runner.xcodeproj/project.pbxproj b/packages/google_sign_in/google_sign_in_ios/example/macos/Runner.xcodeproj/project.pbxproj
index 062eccea1799..6995f2628864 100644
--- a/packages/google_sign_in/google_sign_in_ios/example/macos/Runner.xcodeproj/project.pbxproj
+++ b/packages/google_sign_in/google_sign_in_ios/example/macos/Runner.xcodeproj/project.pbxproj
@@ -28,6 +28,7 @@
 		33CC10F32044A3C60003C045 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 33CC10F22044A3C60003C045 /* Assets.xcassets */; };
 		33CC10F62044A3C60003C045 /* MainMenu.xib in Resources */ = {isa = PBXBuildFile; fileRef = 33CC10F42044A3C60003C045 /* MainMenu.xib */; };
 		33CC11132044BFA00003C045 /* MainFlutterWindow.swift in Sources */ = {isa = PBXBuildFile; fileRef = 33CC11122044BFA00003C045 /* MainFlutterWindow.swift */; };
+		403C71332C66A4F70034A230 /* OCMock in Frameworks */ = {isa = PBXBuildFile; productRef = 403C71322C66A4F70034A230 /* OCMock */; };
 		D7B8415A3D20001DE212873D /* Pods_Runner.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = A19720E5189178660264EC3F /* Pods_Runner.framework */; };
 		F107B1B7E4ECB85727EC4286 /* Pods_RunnerTests.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 0BD1DCE969A7E7C76D9CF93C /* Pods_RunnerTests.framework */; };
 /* End PBXBuildFile section */
@@ -97,6 +98,7 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				403C71332C66A4F70034A230 /* OCMock in Frameworks */,
 				F107B1B7E4ECB85727EC4286 /* Pods_RunnerTests.framework in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
@@ -229,6 +231,9 @@
 				331C80DA294CF71000263BE5 /* PBXTargetDependency */,
 			);
 			name = RunnerTests;
+			packageProductDependencies = (
+				403C71322C66A4F70034A230 /* OCMock */,
+			);
 			productName = RunnerTests;
 			productReference = 331C80D5294CF71000263BE5 /* RunnerTests.xctest */;
 			productType = "com.apple.product-type.bundle.unit-test";
@@ -294,6 +299,9 @@
 				Base,
 			);
 			mainGroup = 33CC10E42044A3C60003C045;
+			packageReferences = (
+				403C71312C66A4F70034A230 /* XCRemoteSwiftPackageReference "ocmock" */,
+			);
 			productRefGroup = 33CC10EE2044A3C60003C045 /* Products */;
 			projectDirPath = "";
 			projectRoot = "";
@@ -790,6 +798,25 @@
 			defaultConfigurationName = Release;
 		};
 /* End XCConfigurationList section */
+
+/* Begin XCRemoteSwiftPackageReference section */
+		403C71312C66A4F70034A230 /* XCRemoteSwiftPackageReference "ocmock" */ = {
+			isa = XCRemoteSwiftPackageReference;
+			repositoryURL = "https://github.com/erikdoe/ocmock";
+			requirement = {
+				kind = revision;
+				revision = fe1661a3efed11831a6452f4b1a0c5e6ddc08c3d;
+			};
+		};
+/* End XCRemoteSwiftPackageReference section */
+
+/* Begin XCSwiftPackageProductDependency section */
+		403C71322C66A4F70034A230 /* OCMock */ = {
+			isa = XCSwiftPackageProductDependency;
+			package = 403C71312C66A4F70034A230 /* XCRemoteSwiftPackageReference "ocmock" */;
+			productName = OCMock;
+		};
+/* End XCSwiftPackageProductDependency section */
 	};
 	rootObject = 33CC10E52044A3C60003C045 /* Project object */;
 }
diff --git a/packages/google_sign_in/google_sign_in_ios/example/macos/Runner/AppDelegate.swift b/packages/google_sign_in/google_sign_in_ios/example/macos/Runner/AppDelegate.swift
index 5cec4c48f620..689c0ecd5254 100644
--- a/packages/google_sign_in/google_sign_in_ios/example/macos/Runner/AppDelegate.swift
+++ b/packages/google_sign_in/google_sign_in_ios/example/macos/Runner/AppDelegate.swift
@@ -5,7 +5,7 @@
 import Cocoa
 import FlutterMacOS
 
-@NSApplicationMain
+@main
 class AppDelegate: FlutterAppDelegate {
   override func applicationShouldTerminateAfterLastWindowClosed(_ sender: NSApplication) -> Bool {
     return true
diff --git a/packages/google_sign_in/google_sign_in_ios/pigeons/messages.dart b/packages/google_sign_in/google_sign_in_ios/pigeons/messages.dart
index c540ee7b60f8..85d8362e26d5 100644
--- a/packages/google_sign_in/google_sign_in_ios/pigeons/messages.dart
+++ b/packages/google_sign_in/google_sign_in_ios/pigeons/messages.dart
@@ -6,9 +6,14 @@ import 'package:pigeon/pigeon.dart';
 
 @ConfigurePigeon(PigeonOptions(
   dartOut: 'lib/src/messages.g.dart',
-  objcOptions: ObjcOptions(prefix: 'FSI'),
-  objcHeaderOut: 'darwin/Classes/messages.g.h',
-  objcSourceOut: 'darwin/Classes/messages.g.m',
+  objcHeaderOut:
+      'darwin/google_sign_in_ios/Sources/google_sign_in/include/google_sign_in/messages.g.h',
+  objcSourceOut:
+      'darwin/google_sign_in_ios/Sources/google_sign_in/messages.g.m',
+  objcOptions: ObjcOptions(
+    prefix: 'FSI',
+    headerIncludePath: './include/google_sign_in/messages.g.h',
+  ),
   copyrightHeader: 'pigeons/copyright.txt',
 ))
 
diff --git a/packages/google_sign_in/google_sign_in_ios/pubspec.yaml b/packages/google_sign_in/google_sign_in_ios/pubspec.yaml
index c86af4d3f0e0..fa581c5edec9 100644
--- a/packages/google_sign_in/google_sign_in_ios/pubspec.yaml
+++ b/packages/google_sign_in/google_sign_in_ios/pubspec.yaml
@@ -2,7 +2,7 @@ name: google_sign_in_ios
 description: iOS implementation of the google_sign_in plugin.
 repository: https://github.com/flutter/packages/tree/main/packages/google_sign_in/google_sign_in_ios
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+google_sign_in%22
-version: 5.7.6
+version: 5.8.0
 
 environment:
   sdk: ^3.3.0