diff --git a/modules/rostests/apitests/user32/CMakeLists.txt b/modules/rostests/apitests/user32/CMakeLists.txt
index e49fad457b2..7dd1be59361 100644
--- a/modules/rostests/apitests/user32/CMakeLists.txt
+++ b/modules/rostests/apitests/user32/CMakeLists.txt
@@ -51,6 +51,7 @@ list(APPEND SOURCE
     SetProp.c
     SetScrollInfo.c
     SetScrollRange.c
+    SetWindowPlacement.c
     ShowWindow.c
     SwitchToThisWindow.c
     SystemMenu.c
diff --git a/modules/rostests/apitests/user32/SetWindowPlacement.c b/modules/rostests/apitests/user32/SetWindowPlacement.c
new file mode 100644
index 00000000000..7f5fb98e549
--- /dev/null
+++ b/modules/rostests/apitests/user32/SetWindowPlacement.c
@@ -0,0 +1,44 @@
+/*
+ * PROJECT:     ReactOS API tests
+ * LICENSE:     LGPL-2.1+ (https://spdx.org/licenses/LGPL-2.1+)
+ * PURPOSE:     Tests for Get/SetWindowPlacement
+ * COPYRIGHT:   Copyright 2024 Katayama Hirofumi MZ <katayama.hirofumi.mz@gmail.com>
+ */
+
+#include "precomp.h"
+
+START_TEST(SetWindowPlacement)
+{
+    HWND hwnd;
+    WINDOWPLACEMENT wndpl;
+    BOOL ret;
+
+    hwnd = CreateWindowW(L"BUTTON", L"Button", WS_POPUPWINDOW, 0, 0, 100, 100,
+                         NULL, NULL, GetModuleHandleW(NULL), NULL);
+
+    SetLastError(0xDEADFACE);
+    wndpl.length = 0xFFFF;
+    ret = GetWindowPlacement(hwnd, &wndpl);
+    ok_int(ret, TRUE);
+    ok_err(0xDEADFACE);
+
+    SetLastError(0xDEADFACE);
+    wndpl.length = sizeof(wndpl);
+    ret = GetWindowPlacement(hwnd, &wndpl);
+    ok_int(ret, TRUE);
+    ok_err(0xDEADFACE);
+
+    SetLastError(0xDEADFACE);
+    wndpl.length = 0xFFFF;
+    ret = SetWindowPlacement(hwnd, &wndpl);
+    ok_int(ret, FALSE);
+    ok_err(ERROR_INVALID_PARAMETER);
+
+    SetLastError(0xDEADFACE);
+    wndpl.length = sizeof(wndpl);
+    ret = SetWindowPlacement(hwnd, &wndpl);
+    ok_int(ret, TRUE);
+    ok_err(ERROR_SUCCESS);
+
+    DestroyWindow(hwnd);
+}
diff --git a/modules/rostests/apitests/user32/testlist.c b/modules/rostests/apitests/user32/testlist.c
index 3e90ebfcfbd..24e66096de1 100644
--- a/modules/rostests/apitests/user32/testlist.c
+++ b/modules/rostests/apitests/user32/testlist.c
@@ -52,6 +52,7 @@ extern void func_SetParent(void);
 extern void func_SetProp(void);
 extern void func_SetScrollInfo(void);
 extern void func_SetScrollRange(void);
+extern void func_SetWindowPlacement(void);
 extern void func_ShowWindow(void);
 extern void func_SwitchToThisWindow(void);
 extern void func_SystemParametersInfo(void);
@@ -112,6 +113,7 @@ const struct test winetest_testlist[] =
     { "SetProp", func_SetProp },
     { "SetScrollInfo", func_SetScrollInfo },
     { "SetScrollRange", func_SetScrollRange },
+    { "SetWindowPlacement", func_SetWindowPlacement },
     { "ShowWindow", func_ShowWindow },
     { "SwitchToThisWindow", func_SwitchToThisWindow },
     { "SystemMenu", func_SystemMenu },