diff --git a/src/corelib/text/qlocale.cpp b/src/corelib/text/qlocale.cpp
index 82ea7ebc447..7b23800965c 100644
--- a/src/corelib/text/qlocale.cpp
+++ b/src/corelib/text/qlocale.cpp
@@ -913,6 +913,32 @@ static QLocalePrivate *findLocalePrivate(QLocale::Language language, QLocale::Sc
     return new QLocalePrivate(data, index, numberOptions);
 }
 
+bool comparesEqual(const QLocale &loc, QLocale::Language lang)
+{
+    // Keep in sync with findLocalePrivate()!
+    auto compareWithPrivate = [&loc](const QLocaleData *data, QLocale::NumberOptions opts)
+    {
+        return loc.d->m_data == data && loc.d->m_numberOptions == opts;
+    };
+
+    if (lang == QLocale::C)
+        return compareWithPrivate(c_private()->m_data, c_private()->m_numberOptions);
+
+    qsizetype index = QLocaleData::findLocaleIndex(QLocaleId { lang });
+    Q_ASSERT(index >= 0 && index < locale_data_size);
+    const QLocaleData *data = locale_data + index;
+
+    QLocale::NumberOptions numberOptions = QLocale::DefaultNumberOptions;
+
+    // If not found, should use default locale:
+    if (data->m_language_id == QLocale::C) {
+        if (defaultLocalePrivate.exists())
+            numberOptions = defaultLocalePrivate->data()->m_numberOptions;
+        data = defaultData();
+    }
+    return compareWithPrivate(data, numberOptions);
+}
+
 static std::optional<QString>
 systemLocaleString(const QLocaleData *that, QSystemLocale::QueryType type)
 {
diff --git a/src/corelib/text/qlocale.h b/src/corelib/text/qlocale.h
index 95c9b4bf64e..55b9ffbeda3 100644
--- a/src/corelib/text/qlocale.h
+++ b/src/corelib/text/qlocale.h
@@ -1180,6 +1180,9 @@ private:
     }
     Q_DECLARE_EQUALITY_COMPARABLE(QLocale)
 
+    friend Q_CORE_EXPORT bool comparesEqual(const QLocale &lhs, Language rhs);
+    Q_DECLARE_EQUALITY_COMPARABLE_NON_NOEXCEPT(QLocale, Language)
+
     QSharedDataPointer<QLocalePrivate> d;
 };
 Q_DECLARE_SHARED(QLocale)
diff --git a/tests/auto/corelib/text/qlocale/tst_qlocale.cpp b/tests/auto/corelib/text/qlocale/tst_qlocale.cpp
index 63175f8c136..e956454a012 100644
--- a/tests/auto/corelib/text/qlocale/tst_qlocale.cpp
+++ b/tests/auto/corelib/text/qlocale/tst_qlocale.cpp
@@ -42,6 +42,7 @@ public:
 private slots:
     void initTestCase();
     void compareCompiles();
+    void compareWithLanguage();
 #if defined(Q_OS_WIN)
     void windowsDefaultLocale();
 #endif
@@ -191,11 +192,6 @@ tst_QLocale::tst_QLocale()
     qRegisterMetaType<QLocale::FormatType>("QLocale::FormatType");
 }
 
-void tst_QLocale::compareCompiles()
-{
-    QTestPrivate::testEqualityOperatorsCompile<QLocale>();
-}
-
 void tst_QLocale::initTestCase()
 {
 #ifdef Q_OS_ANDROID
@@ -227,6 +223,25 @@ void tst_QLocale::initTestCase()
 #endif // QT_CONFIG(process)
 }
 
+void tst_QLocale::compareCompiles()
+{
+    QTestPrivate::testEqualityOperatorsCompile<QLocale>();
+    QTestPrivate::testEqualityOperatorsCompile<QLocale, QLocale::Language>();
+}
+
+void tst_QLocale::compareWithLanguage()
+{
+    QLocale de(QLocale::German);
+    QT_TEST_EQUALITY_OPS(de, QLocale::German, true);
+    QT_TEST_EQUALITY_OPS(de, QLocale::English, false);
+
+    QLocale en_DE(QLocale::English, QLocale::Germany);
+    QCOMPARE_EQ(en_DE.language(), QLocale::English);
+    QCOMPARE_EQ(en_DE.territory(), QLocale::Germany);
+    // Territory won't match
+    QT_TEST_EQUALITY_OPS(en_DE, QLocale::English, false);
+}
+
 void tst_QLocale::ctor_data()
 {
     QTest::addColumn<QLocale::Language>("reqLang");