diff --git a/devel/Makefile b/devel/Makefile
index ee286652d9e6..b35ddab80510 100644
--- a/devel/Makefile
+++ b/devel/Makefile
@@ -5465,6 +5465,7 @@
     SUBDIR += rubygem-aws-sdk-codestar
     SUBDIR += rubygem-aws-sdk-cognitoidentity
     SUBDIR += rubygem-aws-sdk-cognitoidentityprovider
+    SUBDIR += rubygem-aws-sdk-cognitosync
     SUBDIR += rubygem-aws-sdk-core
     SUBDIR += rubygem-aws-sdk-core2
     SUBDIR += rubygem-aws-sdk-resources
diff --git a/devel/rubygem-aws-sdk-cognitosync/Makefile b/devel/rubygem-aws-sdk-cognitosync/Makefile
new file mode 100644
index 000000000000..ad84a7240eff
--- /dev/null
+++ b/devel/rubygem-aws-sdk-cognitosync/Makefile
@@ -0,0 +1,22 @@
+# Created by: Po-Chuan Hsieh <sunpoet@FreeBSD.org>
+# $FreeBSD$
+
+PORTNAME=	aws-sdk-cognitosync
+PORTVERSION=	1.15.0
+CATEGORIES=	devel rubygems
+MASTER_SITES=	RG
+
+MAINTAINER=	sunpoet@FreeBSD.org
+COMMENT=	Official AWS Ruby gem for Amazon Cognito Sync
+
+LICENSE=	APACHE20
+
+RUN_DEPENDS=	rubygem-aws-sdk-core>=3.61.1<4:devel/rubygem-aws-sdk-core \
+		rubygem-aws-sigv4>=1.1<2:devel/rubygem-aws-sigv4
+
+USES=		gem
+USE_RUBY=	yes
+
+NO_ARCH=	yes
+
+.include <bsd.port.mk>
diff --git a/devel/rubygem-aws-sdk-cognitosync/distinfo b/devel/rubygem-aws-sdk-cognitosync/distinfo
new file mode 100644
index 000000000000..d80b2b8f9938
--- /dev/null
+++ b/devel/rubygem-aws-sdk-cognitosync/distinfo
@@ -0,0 +1,3 @@
+TIMESTAMP = 1567272084
+SHA256 (rubygem/aws-sdk-cognitosync-1.15.0.gem) = 90c35a7c4cd70abaf8b00a46cb91db2325c941bdebbac8141514091eeeac0868
+SIZE (rubygem/aws-sdk-cognitosync-1.15.0.gem) = 22528
diff --git a/devel/rubygem-aws-sdk-cognitosync/pkg-descr b/devel/rubygem-aws-sdk-cognitosync/pkg-descr
new file mode 100644
index 000000000000..77b5ef79853c
--- /dev/null
+++ b/devel/rubygem-aws-sdk-cognitosync/pkg-descr
@@ -0,0 +1,4 @@
+Official AWS Ruby gem for Amazon Cognito Sync.
+
+WWW: https://github.com/aws/aws-sdk-ruby
+WWW: https://github.com/aws/aws-sdk-ruby/tree/master/gems/aws-sdk-cognitosync