diff --git a/nixos/tests/all-tests.nix b/nixos/tests/all-tests.nix
index f5fbba20483a..a6201b9d40d0 100644
--- a/nixos/tests/all-tests.nix
+++ b/nixos/tests/all-tests.nix
@@ -752,6 +752,7 @@ in {
   systemd-cryptenroll = handleTest ./systemd-cryptenroll.nix {};
   systemd-credentials-tpm2 = handleTest ./systemd-credentials-tpm2.nix {};
   systemd-escaping = handleTest ./systemd-escaping.nix {};
+  systemd-initrd-bridge = handleTest ./systemd-initrd-bridge.nix {};
   systemd-initrd-btrfs-raid = handleTest ./systemd-initrd-btrfs-raid.nix {};
   systemd-initrd-luks-fido2 = handleTest ./systemd-initrd-luks-fido2.nix {};
   systemd-initrd-luks-keyfile = handleTest ./systemd-initrd-luks-keyfile.nix {};
diff --git a/nixos/tests/systemd-initrd-bridge.nix b/nixos/tests/systemd-initrd-bridge.nix
new file mode 100644
index 000000000000..f48a46ff2b93
--- /dev/null
+++ b/nixos/tests/systemd-initrd-bridge.nix
@@ -0,0 +1,63 @@
+import ./make-test-python.nix ({ lib, ... }: {
+  name = "systemd-initrd-bridge";
+  meta.maintainers = [ lib.maintainers.majiir ];
+
+  # Tests bridge interface configuration in systemd-initrd.
+  #
+  # The 'a' and 'b' nodes are connected to a 'bridge' node through different
+  # links. The 'bridge' node configures a bridge across them. It waits forever
+  # in initrd (stage 1) with networking enabled. 'a' and 'b' ping 'bridge' to
+  # test connectivity with the bridge interface. Then, 'a' pings 'b' to test
+  # the bridge itself.
+
+  nodes = {
+    bridge = { config, lib, ... }: {
+      boot.initrd.systemd.enable = true;
+      boot.initrd.network.enable = true;
+      boot.initrd.systemd.services.boot-blocker = {
+        before = [ "initrd.target" ];
+        wantedBy = [ "initrd.target" ];
+        script = "sleep infinity";
+        serviceConfig.Type = "oneshot";
+      };
+
+      networking.primaryIPAddress = "192.168.1.${toString config.virtualisation.test.nodeNumber}";
+
+      virtualisation.vlans = [ 1 2 ];
+      networking.bridges.br0.interfaces = [ "eth1" "eth2" ];
+
+      networking.interfaces = {
+        eth1.ipv4.addresses = lib.mkForce [];
+        eth2.ipv4.addresses = lib.mkForce [];
+        br0.ipv4.addresses = [{
+          address = config.networking.primaryIPAddress;
+          prefixLength = 24;
+        }];
+      };
+    };
+
+    a = {
+      virtualisation.vlans = [ 1 ];
+    };
+
+    b = { config, ... }: {
+      virtualisation.vlans = [ 2 ];
+      networking.primaryIPAddress = lib.mkForce "192.168.1.${toString config.virtualisation.test.nodeNumber}";
+      networking.interfaces.eth1.ipv4.addresses = lib.mkForce [{
+        address = config.networking.primaryIPAddress;
+        prefixLength = 24;
+      }];
+    };
+  };
+
+  testScript = ''
+    start_all()
+    a.wait_for_unit("network.target")
+    b.wait_for_unit("network.target")
+
+    a.succeed("ping -n -w 10 -c 1 bridge >&2")
+    b.succeed("ping -n -w 10 -c 1 bridge >&2")
+
+    a.succeed("ping -n -w 10 -c 1 b >&2")
+  '';
+})