diff --git a/src/corelib/kernel/qcoreapplication.cpp b/src/corelib/kernel/qcoreapplication.cpp
index fe1827ef578..4d37894f353 100644
--- a/src/corelib/kernel/qcoreapplication.cpp
+++ b/src/corelib/kernel/qcoreapplication.cpp
@@ -576,9 +576,27 @@ QString qAppName()
     return QCoreApplication::instance()->d_func()->appName();
 }
 
+#ifdef Q_OS_WINDOWS
+// Return true if we could determine that the current process was linked with /SUBSYSTEM:CONSOLE.
+// Return false otherwise.
+static bool isConsoleApplication()
+{
+    auto dosHeader = reinterpret_cast<PIMAGE_DOS_HEADER>(GetModuleHandle(nullptr));
+    if (!dosHeader || dosHeader->e_magic != IMAGE_DOS_SIGNATURE)
+        return false;
+    auto dosHeaderAddr = reinterpret_cast<PBYTE>(dosHeader);
+    auto ntHeaders = reinterpret_cast<PIMAGE_NT_HEADERS>(dosHeaderAddr + dosHeader->e_lfanew);
+    if (ntHeaders->Signature != IMAGE_NT_SIGNATURE)
+        return false;
+    return ntHeaders->OptionalHeader.Subsystem == IMAGE_SUBSYSTEM_WINDOWS_CUI;
+}
+#endif
+
 void QCoreApplicationPrivate::initConsole()
 {
 #ifdef Q_OS_WINDOWS
+    if (isConsoleApplication())
+        return;
     const QString env = qEnvironmentVariable("QT_WIN_DEBUG_CONSOLE");
     if (env.isEmpty())
         return;