diff --git a/sec-keys/openpgp-keys-cjwatson/Manifest b/sec-keys/openpgp-keys-cjwatson/Manifest
new file mode 100644
index 0000000000000..4b9b845c8d940
--- /dev/null
+++ b/sec-keys/openpgp-keys-cjwatson/Manifest
@@ -0,0 +1 @@
+DIST openpgp-keys-cjwatson-github-20260124.asc 5595 BLAKE2B 9f0b946162e0f51316fc58ace96da5c4bc89914845a9ac6784873868b8fca614d8f0a548c46238eebb4eb3081d8f88976f6d11c0b691ebfecffeccf6f9f4fcf2 SHA512 06cea05e896daeabcdcc14151cbf7c097273a1228d4ef4b9c5fb2210004bc5c6b1c6dd8b52f33cce201dac1e21f0ddcd1676ab2e8a6ceeaa07ca6dd2b5eb284b
diff --git a/sec-keys/openpgp-keys-cjwatson/metadata.xml b/sec-keys/openpgp-keys-cjwatson/metadata.xml
new file mode 100644
index 0000000000000..b0d83aa2e4894
--- /dev/null
+++ b/sec-keys/openpgp-keys-cjwatson/metadata.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="project">
+		<email>base-system@gentoo.org</email>
+		<name>Gentoo Base System</name>
+	</maintainer>
+</pkgmetadata>
diff --git a/sec-keys/openpgp-keys-cjwatson/openpgp-keys-cjwatson-20260124.ebuild b/sec-keys/openpgp-keys-cjwatson/openpgp-keys-cjwatson-20260124.ebuild
new file mode 100644
index 0000000000000..f1adb6e8f49c6
--- /dev/null
+++ b/sec-keys/openpgp-keys-cjwatson/openpgp-keys-cjwatson-20260124.ebuild
@@ -0,0 +1,16 @@
+# Copyright 2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+SEC_KEYS_VALIDPGPKEYS=(
+	AC0A4FF12611B6FCCF01C111393587D97D86500B:cjwatson:github
+)
+
+inherit sec-keys
+
+DESCRIPTION="OpenPGP key used by Colin Watson"
+HOMEPAGE="https://github.com/cjwatson https://www.columbiform.co.uk/"
+
+SLOT="0"
+KEYWORDS="~alpha amd64 arm arm64 ~hppa ~loong ~m68k ~mips ppc ppc64 ~riscv ~s390 ~sparc x86"