diff --git a/pkgs/by-name/ag/agrep/package.nix b/pkgs/by-name/ag/agrep/package.nix
deleted file mode 100644
index eab2450765a7..000000000000
--- a/pkgs/by-name/ag/agrep/package.nix
+++ /dev/null
@@ -1,67 +0,0 @@
-{
-  lib,
-  fetchFromGitHub,
-  fetchpatch,
-  stdenv,
-}:
-let
-  # This repository has numbered versions, but not Git tags.
-  rev = "b7d180fe73636740f694ec60c1ffab52b06e7150";
-in
-stdenv.mkDerivation {
-  pname = "agrep";
-  version = "3.41.5-unstable-2022-03-23";
-
-  src = fetchFromGitHub {
-    inherit rev;
-    owner = "Wikinaut";
-    repo = "agrep";
-    hash = "sha256-2J4bw5BVZgTEcIn9IuD5Q8/L+8tldDbToDefuxDf85g=";
-  };
-
-  patches = [
-    # Implicit declaration of functions & implicit int
-    # https://github.com/Wikinaut/agrep/pull/31
-    (fetchpatch {
-      url = "https://patch-diff.githubusercontent.com/raw/Wikinaut/agrep/pull/31.patch";
-      hash = "sha256-9ik2RANq12T/1vCUYTBNomzw+aJVa/LU2RsZovu3r3E=";
-    })
-  ];
-
-  postPatch = ''
-    # agrep only doesn't includes <sys/stat.h> for Linux
-    # Starting from gcc14, this is a compiler error
-    substituteInPlace checkfil.c recursiv.c \
-      --replace-fail '#ifdef __APPLE__
-        #include <sys/stat.h>
-    #endif' '#include <sys/stat.h>'
-
-    substituteInPlace newmgrep.c \
-      --replace-fail '#if defined(_WIN32) || defined(__APPLE__)
-        #include <sys/stat.h>
-    #endif' '#include <sys/stat.h>'
-  '';
-
-  makeFlags = [ "CC=${stdenv.cc.targetPrefix}cc" ];
-
-  env.NIX_CFLAGS_COMPILE = lib.optionalString stdenv.cc.isClang "-std=c89";
-
-  installPhase = ''
-    runHook preInstall
-
-    install -Dm 555 agrep -t "$out/bin"
-    install -Dm 444 docs/* -t "$out/doc"
-
-    runHook postInstall
-  '';
-
-  meta = {
-    description = "Approximate grep for fast fuzzy string searching";
-    mainProgram = "agrep";
-    homepage = "https://www.tgries.de/agrep/";
-    maintainers = with lib.maintainers; [ momeemt ];
-    changelog = "https://github.com/Wikinaut/agrep/blob/${rev}/CHANGES";
-    license = lib.licenses.isc;
-    platforms = lib.platforms.unix;
-  };
-}
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index e1ba3cbab279..888110df1f1d 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -274,6 +274,7 @@ mapAliases {
   adminerneo = throw "'adminerneo' has been renamed to/replaced by 'adminneo'"; # Converted to throw 2025-10-27
   adobe-reader = throw "'adobe-reader' has been removed, as it was broken, outdated and insecure"; # Added 2025-05-31
   afpfs-ng = throw "'afpfs-ng' has been removed as it was broken and unmaintained for 10 years"; # Added 2025-05-17
+  agrep = throw "'agrep' has been removed due to lack of upstream maintenance. Consider using 'tre' or 'ugrep' instead."; # Added 2025-12-28
   akkoma-emoji = throw "'akkoma-emoji' has been renamed to/replaced by 'blobs_gg'"; # Converted to throw 2025-10-27
   akkoma-frontends.admin-fe = throw "'akkoma-frontends.admin-fe' has been renamed to/replaced by 'akkoma-admin-fe'"; # Converted to throw 2025-10-27
   akkoma-frontends.akkoma-fe = throw "'akkoma-frontends.akkoma-fe' has been renamed to/replaced by 'akkoma-fe'"; # Converted to throw 2025-10-27