diff --git a/source/index.ts b/source/index.ts
index 6cb8159..15c1998 100644
--- a/source/index.ts
+++ b/source/index.ts
@@ -14,7 +14,9 @@ export const enum TypeName {
 	symbol = 'symbol',
 	Function = 'Function',
 	Generator = 'Generator',
+	AsyncGenerator = 'AsyncGenerator',
 	GeneratorFunction = 'GeneratorFunction',
+	AsyncGeneratorFunction = 'AsyncGeneratorFunction',
 	AsyncFunction = 'AsyncFunction',
 	Observable = 'Observable',
 	Array = 'Array',
@@ -141,6 +143,8 @@ is.asyncIterable = (value: unknown): value is AsyncIterableIterator<unknown> =>
 
 is.generator = (value: unknown): value is Generator => is.iterable(value) && is.function_(value.next) && is.function_(value.throw);
 
+is.asyncGenerator = (value: unknown): value is AsyncGenerator => is.asyncIterable(value) && is.function_(value.next) && is.function_(value.throw);
+
 is.nativePromise = (value: unknown): value is Promise<unknown> =>
 	isObjectOfType<Promise<unknown>>(TypeName.Promise)(value);
 
@@ -153,6 +157,8 @@ is.promise = (value: unknown): value is Promise<unknown> => is.nativePromise(val
 
 is.generatorFunction = isObjectOfType<GeneratorFunction>(TypeName.GeneratorFunction);
 
+is.asyncGeneratorFunction = (value: unknown): value is ((...args: any[]) => Promise<unknown>) => getObjectType(value) === TypeName.AsyncGeneratorFunction;
+
 is.asyncFunction = (value: unknown): value is ((...args: any[]) => Promise<unknown>) => getObjectType(value) === TypeName.AsyncFunction;
 
 // eslint-disable-next-line no-prototype-builtins, @typescript-eslint/ban-types
diff --git a/test/test.ts b/test/test.ts
index 0d9c13a..fa6771f 100644
--- a/test/test.ts
+++ b/test/test.ts
@@ -123,7 +123,8 @@ const types = new Map<string, Test>([
 			function () {},
 			() => {},
 			async function () {},
-			function * (): unknown {}
+			function * (): unknown {},
+			async function * (): unknown {}
 		],
 		typename: TypeName.Function
 	}],
@@ -189,6 +190,15 @@ const types = new Map<string, Test>([
 		],
 		typename: TypeName.Generator
 	}],
+	['asyncGenerator', {
+		is: is.asyncGenerator,
+		fixtures: [
+			(async function * () {
+				yield 4;
+			})()
+		],
+		typename: TypeName.AsyncGenerator
+	}],
 	['generatorFunction', {
 		is: is.generatorFunction,
 		fixtures: [
@@ -198,6 +208,15 @@ const types = new Map<string, Test>([
 		],
 		typename: TypeName.Function
 	}],
+	['asyncGeneratorFunction', {
+		is: is.asyncGeneratorFunction,
+		fixtures: [
+			async function * () {
+				yield 4;
+			}
+		],
+		typename: TypeName.Function
+	}],
 	['asyncFunction', {
 		is: is.asyncFunction,
 		fixtures: [
@@ -513,7 +532,7 @@ test('is.array', t => {
 });
 
 test('is.function', t => {
-	testType(t, 'function', ['generatorFunction', 'asyncFunction', 'boundFunction']);
+	testType(t, 'function', ['generatorFunction', 'asyncGeneratorFunction', 'asyncFunction', 'boundFunction']);
 });
 
 test('is.boundFunction', t => {
@@ -572,10 +591,33 @@ test('is.generator', t => {
 	testType(t, 'generator');
 });
 
+test('is.asyncGenerator', t => {
+	testType(t, 'asyncGenerator');
+
+	const fixture = (async function * () {
+		yield 4;
+	})();
+	if (is.asyncGenerator(fixture)) {
+		t.true(is.function_(fixture.next));
+	}
+});
+
 test('is.generatorFunction', t => {
 	testType(t, 'generatorFunction', ['function']);
 });
 
+test('is.asyncGeneratorFunction', t => {
+	testType(t, 'asyncGeneratorFunction', ['function']);
+
+	const fixture = async function * () {
+		yield 4;
+	};
+
+	if (is.asyncGeneratorFunction(fixture)) {
+		t.true(is.function_(fixture().next));
+	}
+});
+
 test('is.map', t => {
 	testType(t, 'map', ['emptyMap']);
 });