diff --git a/kde-apps/korganizer/Manifest b/kde-apps/korganizer/Manifest
index cf755a14164b..eda71f9e5880 100644
--- a/kde-apps/korganizer/Manifest
+++ b/kde-apps/korganizer/Manifest
@@ -1 +1,2 @@
 DIST korganizer-25.08.3.tar.xz 3056900 BLAKE2B d7fd062be2caba492fbff777b51f005a888fd557e8f05d9097019e0db3d01d158439ab34a418a21af5b04105d1aabd245c2330b75e8498aca85d45d9d684daf4 SHA512 b102aca867208eff26d2f6d427004b17d8fa227ff84ea884103545a42962aedae1b8c3afb34a1f445a9f54b4b984f1bcf4355863c5ca26ddc95661f06da86be9
+DIST korganizer-25.12.0.tar.xz 3063976 BLAKE2B 1f531e2597716673e859835afbe8f86fea521f5fcaf747ace158c9f95e4a3917e104dc5a89123050edb391c63f27c39648ee51d697146677e76fa51027405041 SHA512 e7be8bcf93b0a8f9b603f648753be8173d378e468e774c671f8b4719e28ee77efbdb8623782e3d586c59816a797955a8c10de74e2d40fd5e7cbf00732e3262cb
diff --git a/kde-apps/korganizer/korganizer-25.12.0.ebuild b/kde-apps/korganizer/korganizer-25.12.0.ebuild
new file mode 100644
index 000000000000..40cedb9046dd
--- /dev/null
+++ b/kde-apps/korganizer/korganizer-25.12.0.ebuild
@@ -0,0 +1,78 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+ECM_HANDBOOK="optional"
+ECM_TEST="forceoptional"
+PVCUT=$(ver_cut 1-3)
+KFMIN=6.19.0
+QTMIN=6.9.1
+inherit ecm gear.kde.org xdg
+
+DESCRIPTION="Organizational assistant, providing calendars and other similar functionality"
+HOMEPAGE="https://apps.kde.org/korganizer/"
+
+LICENSE="GPL-2+ handbook? ( FDL-1.2+ )"
+SLOT="6"
+KEYWORDS="~amd64 ~arm64"
+IUSE="activities telemetry"
+
+# testkodaymatrix is broken, akonadi* tests need DBus, bug #665686
+RESTRICT="test"
+
+COMMON_DEPEND="
+	>=dev-libs/ktextaddons-1.8.0:6
+	>=dev-qt/qtbase-${QTMIN}:6[dbus,gui,widgets]
+	>=dev-qt/qttools-${QTMIN}:6[widgets]
+	>=kde-apps/akonadi-${PVCUT}:6=
+	>=kde-apps/akonadi-calendar-${PVCUT}:6=
+	>=kde-apps/akonadi-contacts-${PVCUT}:6=
+	>=kde-apps/calendarsupport-${PVCUT}:6=
+	>=kde-apps/eventviews-${PVCUT}:6=
+	>=kde-apps/incidenceeditor-${PVCUT}:6=
+	>=kde-apps/kcalutils-${PVCUT}:6=
+	>=kde-apps/kmailtransport-${PVCUT}:6=
+	>=kde-apps/kmime-${PVCUT}:6=
+	>=kde-apps/kontactinterface-${PVCUT}:6=
+	>=kde-apps/libkdepim-${PVCUT}:6=
+	>=kde-apps/pimcommon-${PVCUT}:6=[activities?]
+	>=kde-frameworks/kcalendarcore-${KFMIN}:6
+	>=kde-frameworks/kcmutils-${KFMIN}:6
+	>=kde-frameworks/kconfig-${KFMIN}:6
+	>=kde-frameworks/kcontacts-${KFMIN}:6
+	>=kde-frameworks/kcoreaddons-${KFMIN}:6
+	>=kde-frameworks/kcrash-${KFMIN}:6
+	>=kde-frameworks/kholidays-${KFMIN}:6
+	>=kde-frameworks/ki18n-${KFMIN}:6
+	>=kde-frameworks/kiconthemes-${KFMIN}:6
+	>=kde-frameworks/kio-${KFMIN}:6
+	>=kde-frameworks/kitemmodels-${KFMIN}:6
+	>=kde-frameworks/kitemviews-${KFMIN}:6
+	>=kde-frameworks/kjobwidgets-${KFMIN}:6
+	>=kde-frameworks/kparts-${KFMIN}:6
+	>=kde-frameworks/kwidgetsaddons-${KFMIN}:6
+	>=kde-frameworks/kwindowsystem-${KFMIN}:6
+	>=kde-frameworks/kxmlgui-${KFMIN}:6
+	x11-libs/libX11
+	activities? ( kde-plasma/plasma-activities:6= )
+	telemetry? ( >=kde-frameworks/kuserfeedback-${KFMIN}:6 )
+"
+DEPEND="${COMMON_DEPEND}
+	>=kde-apps/kldap-${PVCUT}:6
+	test? ( kde-apps/akonadi-config[sqlite] )
+"
+RDEPEND="${COMMON_DEPEND}
+	!<kde-apps/kdepim-addons-24.07.50:*
+	=kde-apps/kdepim-runtime-${PVCUT}*:6
+"
+BDEPEND="test? ( >=kde-apps/akonadi-${PVCUT}:6[tools] )"
+
+src_configure() {
+	local mycmakeargs=(
+		-DOPTION_USE_PLASMA_ACTIVITIES=$(usex activities)
+		$(cmake_use_find_package telemetry KF6UserFeedback)
+	)
+
+	ecm_src_configure
+}