diff --git a/modules/rostests/apitests/ntdll/CMakeLists.txt b/modules/rostests/apitests/ntdll/CMakeLists.txt
index f48d4e53dec..abda236e613 100644
--- a/modules/rostests/apitests/ntdll/CMakeLists.txt
+++ b/modules/rostests/apitests/ntdll/CMakeLists.txt
@@ -79,6 +79,7 @@ list(APPEND SOURCE
     RtlGetLengthWithoutTrailingPathSeperators.c
     RtlGetLongestNtPathLength.c
     RtlGetNtProductType.c
+    RtlGetProcessHeaps.c
     RtlGetUnloadEventTrace.c
     RtlHandle.c
     RtlImageDirectoryEntryToData.c
diff --git a/modules/rostests/apitests/ntdll/RtlGetProcessHeaps.c b/modules/rostests/apitests/ntdll/RtlGetProcessHeaps.c
new file mode 100644
index 00000000000..25b1959a41d
--- /dev/null
+++ b/modules/rostests/apitests/ntdll/RtlGetProcessHeaps.c
@@ -0,0 +1,48 @@
+/*
+ * PROJECT:     ReactOS api tests
+ * LICENSE:     LGPL-2.1-or-later (https://spdx.org/licenses/LGPL-2.1-or-later)
+ * PURPOSE:     Test for RtlGetProcessHeaps
+ * COPYRIGHT:   Copyright 2023 Mark Jansen <mark.jansen@reactos.org>
+ */
+
+#include "precomp.h"
+
+START_TEST(RtlGetProcessHeaps)
+{
+    HANDLE HeapArray[40] = {0};
+    ULONG MaxHeapArraySize = _countof(HeapArray);
+
+    // Can call it with NULL
+    ULONG InitialNumHeaps = RtlGetProcessHeaps(0, NULL);
+    ok(InitialNumHeaps > 0, "Expected at least one heap\n");
+    ok(InitialNumHeaps < MaxHeapArraySize, "Expected less heaps, got %lu\n", InitialNumHeaps);
+
+    // Grab all heaps
+    ULONG NumHeaps = RtlGetProcessHeaps(MaxHeapArraySize, HeapArray);
+    ok_eq_ulong(NumHeaps, InitialNumHeaps);
+    for (ULONG n = 0; n < min(NumHeaps, MaxHeapArraySize); ++n)
+    {
+        ok(HeapArray[n] != NULL, "Heap[%lu] == NULL\n", n);
+    }
+
+    PVOID HeapPtr = RtlCreateHeap(HEAP_GROWABLE, NULL, 0, 0x10000, NULL, NULL);
+
+    memset(HeapArray, 0, sizeof(HeapArray));
+    NumHeaps = RtlGetProcessHeaps(MaxHeapArraySize, HeapArray);
+    ok_eq_ulong(InitialNumHeaps + 1, NumHeaps);
+    if (NumHeaps > 0 && NumHeaps <= MaxHeapArraySize)
+    {
+        // A new heap is added at the end
+        ok_ptr(HeapArray[NumHeaps - 1], HeapPtr);
+    }
+
+    RtlDestroyHeap(HeapPtr);
+
+    // Just ask for one heap, the number of heaps available is returned, but only one heap ptr filled!
+    memset(HeapArray, 0xff, sizeof(HeapArray));
+    NumHeaps = RtlGetProcessHeaps(1, HeapArray);
+    ok_eq_ulong(NumHeaps, InitialNumHeaps);
+
+    ok_ptr(HeapArray[0], RtlGetProcessHeap());  // First item is the process heap
+    ok_ptr(HeapArray[1], INVALID_HANDLE_VALUE); // Next item is not touched!
+}
diff --git a/modules/rostests/apitests/ntdll/testlist.c b/modules/rostests/apitests/ntdll/testlist.c
index 6d22f349692..a34b06f12d7 100644
--- a/modules/rostests/apitests/ntdll/testlist.c
+++ b/modules/rostests/apitests/ntdll/testlist.c
@@ -76,6 +76,7 @@ extern void func_RtlGetLengthWithoutLastFullDosOrNtPathElement(void);
 extern void func_RtlGetLengthWithoutTrailingPathSeperators(void);
 extern void func_RtlGetLongestNtPathLength(void);
 extern void func_RtlGetNtProductType(void);
+extern void func_RtlGetProcessHeaps(void);
 extern void func_RtlGetUnloadEventTrace(void);
 extern void func_RtlHandle(void);
 extern void func_RtlImageDirectoryEntryToData(void);
@@ -175,6 +176,7 @@ const struct test winetest_testlist[] =
     { "RtlGetLengthWithoutTrailingPathSeperators", func_RtlGetLengthWithoutTrailingPathSeperators },
     { "RtlGetLongestNtPathLength",      func_RtlGetLongestNtPathLength },
     { "RtlGetNtProductType",            func_RtlGetNtProductType },
+    { "RtlGetProcessHeaps",             func_RtlGetProcessHeaps },
     { "RtlGetUnloadEventTrace",         func_RtlGetUnloadEventTrace },
     { "RtlHandle",                      func_RtlHandle },
     { "RtlImageDirectoryEntryToData",   func_RtlImageDirectoryEntryToData },