diff --git a/sci-libs/hipCUB/Manifest b/sci-libs/hipCUB/Manifest
new file mode 100644
index 0000000000000..e81dcfbc89c2d
--- /dev/null
+++ b/sci-libs/hipCUB/Manifest
@@ -0,0 +1 @@
+DIST hipCUB-4.0.0.tar.gz 137513 BLAKE2B b7ef4d53037fba04771162ae8993def648f5e1401654286ffc6987bbb4b25baa1b1b14bc37035e1afe46eeffe3e564f244e339cdfd0e5a242574d248bf4683db SHA512 e778b94c86e09bf3b0bc043fb15ed8725387b875e8631a7e8599aee8da2d8085190effc9681d742fc0d286cc0c20762341f1f24699c8a52e9734611c716530d5
diff --git a/sci-libs/hipCUB/hipCUB-4.0.0-r1.ebuild b/sci-libs/hipCUB/hipCUB-4.0.0-r1.ebuild
new file mode 100644
index 0000000000000..922c5df9c8ab0
--- /dev/null
+++ b/sci-libs/hipCUB/hipCUB-4.0.0-r1.ebuild
@@ -0,0 +1,47 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit cmake
+
+DESCRIPTION="A thin wrapper library on top of rocPRIM or CUB"
+HOMEPAGE="https://github.com/ROCmSoftwarePlatform/hipCUB"
+SRC_URI="https://github.com/ROCmSoftwarePlatform/hipCUB/archive/rocm-${PV}.tar.gz -> hipCUB-${PV}.tar.gz"
+
+LICENSE="BSD"
+KEYWORDS="~amd64"
+SLOT="0"
+
+RDEPEND="=dev-util/hip-$(ver_cut 1-2)*
+	=sci-libs/rocPRIM-${PV}*"
+DEPEND="${RDEPEND}"
+
+S="${WORKDIR}/hipCUB-rocm-${PV}"
+
+src_prepare() {
+	sed -e "/PREFIX hipcub/d" \
+		-e "/DESTINATION/s:hipcub/include/:include/:" \
+		-e "/rocm_install_symlink_subdir(hipcub)/d" \
+		-e "/<INSTALL_INTERFACE/s:hipcub/include/:include/hipcub/:" -i hipcub/CMakeLists.txt || die
+
+	sed	-e "s:\${ROCM_INSTALL_LIBDIR}:\${CMAKE_INSTALL_LIBDIR}:" -i cmake/ROCMExportTargetsHeaderOnly.cmake || die
+
+	eapply_user
+	cmake_src_prepare
+}
+
+src_configure() {
+	# Grant access to the device
+	addwrite /dev/kfd
+	addpredict /dev/dri/
+
+	# Compiler to use
+	export CXX=hipcc
+
+	local mycmakeargs=(
+		-DBUILD_TEST=OFF
+	)
+
+	cmake_src_configure
+}
diff --git a/sci-libs/hipCUB/metadata.xml b/sci-libs/hipCUB/metadata.xml
new file mode 100644
index 0000000000000..bc384a7a870c5
--- /dev/null
+++ b/sci-libs/hipCUB/metadata.xml
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+  <maintainer type="project">
+    <email>sci@gentoo.org</email>
+  </maintainer>
+  <maintainer type="person">
+    <email>candrews@gentoo.org</email>
+    <name>Craig Andrews</name>
+  </maintainer>
+  <maintainer type="person">
+    <email>gentoo@holzke.net</email>
+    <name>Wilfried Holzke</name>
+  </maintainer>
+  <upstream>
+    <remote-id type="github">ROCm-Developer-Tools/hipCUB</remote-id>
+  </upstream>
+</pkgmetadata>