diff --git a/ci/OWNERS b/ci/OWNERS
index bf6e070d80e4e..3bd3ce3253453 100644
--- a/ci/OWNERS
+++ b/ci/OWNERS
@@ -391,12 +391,6 @@ pkgs/by-name/fo/forgejo/                @adamcstephens @bendlas @emilylange
 /pkgs/development/compilers/ocaml   @ulrikstrid
 /pkgs/development/ocaml-modules     @ulrikstrid
 
-# ZFS
-pkgs/os-specific/linux/zfs/2_1.nix        @raitobezarius
-pkgs/os-specific/linux/zfs/generic.nix    @raitobezarius
-nixos/modules/tasks/filesystems/zfs.nix   @raitobezarius
-nixos/tests/zfs.nix                       @raitobezarius
-
 # Zig
 /pkgs/development/compilers/zig @figsoda
 /doc/hooks/zig.section.md       @figsoda
diff --git a/nixos/tests/zfs.nix b/nixos/tests/zfs.nix
index 13db2c8e06be6..75b41b7aac1dc 100644
--- a/nixos/tests/zfs.nix
+++ b/nixos/tests/zfs.nix
@@ -191,12 +191,6 @@ let
 
 in {
 
-  # maintainer: @raitobezarius
-  series_2_1 = makeZfsTest {
-    zfsPackage = pkgs.zfs_2_1;
-    kernelPackages = pkgs.linuxPackages;
-  };
-
   series_2_2 = makeZfsTest {
     zfsPackage = pkgs.zfs_2_2;
     kernelPackages = pkgs.linuxPackages;
diff --git a/pkgs/os-specific/linux/zfs/2_1.nix b/pkgs/os-specific/linux/zfs/2_1.nix
deleted file mode 100644
index bc2ada0a901c4..0000000000000
--- a/pkgs/os-specific/linux/zfs/2_1.nix
+++ /dev/null
@@ -1,30 +0,0 @@
-{ callPackage
-, kernel ? null
-, stdenv
-, lib
-, nixosTests
-, ...
-} @ args:
-
-let
-  stdenv' = if kernel == null then stdenv else kernel.stdenv;
-in
-callPackage ./generic.nix args {
-  # You have to ensure that in `pkgs/top-level/linux-kernels.nix`
-  # this attribute is the correct one for this package.
-  kernelModuleAttribute = "zfs_2_1";
-  # check the release notes for compatible kernels
-  kernelCompatible = kernel: kernel.kernelOlder "6.8";
-
-  # This is a fixed version to the 2.1.x series, move only
-  # if the 2.1.x series moves.
-  version = "2.1.16";
-
-  hash = "sha256-egs7paAOdbRAJH4QwIjlK3jAL/le51kDQrdW4deHfAI=";
-
-  tests = {
-    inherit (nixosTests.zfs) series_2_1;
-  };
-
-  maintainers = [ lib.maintainers.raitobezarius ];
-}
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index d7a6b1472926d..a4e1f57a44b68 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -1458,6 +1458,7 @@ mapAliases {
 
   zfsStable = zfs; # Added 2024-02-26
   zfsUnstable = zfs_unstable; # Added 2024-02-26
+  zfs_2_1 = throw "zfs 2.1 has been removed as it is EOL. Please upgrade to a newer version"; # Added 2024-12-25
   zinc = zincsearch; # Added 2023-05-28
   zk-shell = throw "zk-shell has been removed as it was broken and unmaintained"; # Added 2024-08-10
   zkg = throw "'zkg' has been replaced by 'zeek'";
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 0c10b76bbb513..d5e218b7417b7 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -12717,9 +12717,6 @@ with pkgs;
 
   inherit
     ({
-      zfs_2_1 = callPackage ../os-specific/linux/zfs/2_1.nix {
-        configFile = "user";
-      };
       zfs_2_2 = callPackage ../os-specific/linux/zfs/2_2.nix {
         configFile = "user";
       };
@@ -12727,7 +12724,6 @@ with pkgs;
         configFile = "user";
       };
     })
-    zfs_2_1
     zfs_2_2
     zfs_unstable;
   zfs = zfs_2_2;
diff --git a/pkgs/top-level/linux-kernels.nix b/pkgs/top-level/linux-kernels.nix
index 0eed40c970a8e..b456e36e409db 100644
--- a/pkgs/top-level/linux-kernels.nix
+++ b/pkgs/top-level/linux-kernels.nix
@@ -583,10 +583,6 @@ in {
 
     zenpower = callPackage ../os-specific/linux/zenpower { };
 
-    zfs_2_1 = callPackage ../os-specific/linux/zfs/2_1.nix {
-      configFile = "kernel";
-      inherit pkgs kernel;
-    };
     zfs_2_2 = callPackage ../os-specific/linux/zfs/2_2.nix {
       configFile = "kernel";
       inherit pkgs kernel;
@@ -616,6 +612,7 @@ in {
     msi-ec = callPackage ../os-specific/linux/msi-ec { };
 
   } // lib.optionalAttrs config.allowAliases {
+    zfs_2_1 = throw "zfs_2_1 has been removed"; # added 2024-12-25;
     ati_drivers_x11 = throw "ati drivers are no longer supported by any kernel >=4.1"; # added 2021-05-18;
     hid-nintendo = throw "hid-nintendo was added in mainline kernel version 5.16"; # Added 2023-07-30
     sch_cake = throw "sch_cake was added in mainline kernel version 4.19"; # Added 2023-06-14