diff --git a/app-admin/mkosi/Manifest b/app-admin/mkosi/Manifest
index 94634422e516..51e9fc769010 100644
--- a/app-admin/mkosi/Manifest
+++ b/app-admin/mkosi/Manifest
@@ -1 +1,2 @@
 DIST mkosi-24.3.tar.gz 349900 BLAKE2B 98685e19b7891f409ccffe4223e588c3777649b817228e0590d6603f96fb779cd1c0d092acd595ed4226f5405fb34f08d767c21b1590be3a5493bded683675af SHA512 b74f3614574926338b610d8301b583f81765207ffd2b3bb0598557a72108a8d1fbd8922be5de51c12a5864d040ecf8af9750b4220718cc300d7ab83d034906e6
+DIST mkosi-25.3.tar.gz 392923 BLAKE2B 1f87a3a088977c4801b5ad63b718d2dd88700498f1c3b504ab9eb512ed8216d33ea46540a25266a166695f78d6e46e1019fde97bf7035c0e49386ac78b2015f3 SHA512 c786278d17292ce8e922511140315a97763801ee54ad8ec01de28f68a5fb01d107cba4595457661d56f0e2e1b98ff9ec89bdf061779d96db48901c20106c4086
diff --git a/app-admin/mkosi/mkosi-25.3.ebuild b/app-admin/mkosi/mkosi-25.3.ebuild
new file mode 100644
index 000000000000..ed949ab1d229
--- /dev/null
+++ b/app-admin/mkosi/mkosi-25.3.ebuild
@@ -0,0 +1,41 @@
+# Copyright 2021-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+DISTUTILS_USE_PEP517=setuptools
+PYTHON_COMPAT=( python3_{11..14} )
+
+inherit distutils-r1 optfeature
+
+DESCRIPTION="Build Bespoke OS Images"
+HOMEPAGE="https://github.com/systemd/mkosi"
+SRC_URI="https://github.com/systemd/mkosi/archive/refs/tags/v${PV}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="GPL-2+"
+SLOT="0"
+KEYWORDS="~amd64"
+RDEPEND="
+	app-emulation/qemu
+	sys-apps/bubblewrap
+	sys-apps/systemd
+	|| ( sys-firmware/edk2-bin sys-firmware/edk2 )"
+BDEPEND="virtual/pandoc"
+
+distutils_enable_tests pytest
+
+src_compile() {
+	distutils-r1_src_compile
+
+	./tools/make-man-page.sh || die
+}
+
+src_install() {
+	distutils-r1_src_install
+
+	doman mkosi/resources/man/*.{1,7}
+}
+
+pkg_postinst() {
+	optfeature "debian support" dev-util/debootstrap
+}