diff --git a/src/widgets/widgets/qcombobox.cpp b/src/widgets/widgets/qcombobox.cpp
index 52e7962109..4358e568bf 100644
--- a/src/widgets/widgets/qcombobox.cpp
+++ b/src/widgets/widgets/qcombobox.cpp
@@ -170,18 +170,18 @@ QStyleOptionMenuItem QComboMenuDelegate::getStyleOption(const QStyleOptionViewIt
     menuOption.menuRect = option.rect;
     menuOption.rect = option.rect;
 
-    // Make sure fonts set on the combo box also overrides the font for the popup menu.
-    if (mCombo->testAttribute(Qt::WA_SetFont)
+    // Make sure fonts set on the model or on the combo box, in
+    // that order, also override the font for the popup menu.
+    QVariant fontRoleData = index.data(Qt::FontRole);
+    if (fontRoleData.isValid()) {
+        menuOption.font = fontRoleData.value<QFont>();
+    } else if (mCombo->testAttribute(Qt::WA_SetFont)
             || mCombo->testAttribute(Qt::WA_MacSmallSize)
             || mCombo->testAttribute(Qt::WA_MacMiniSize)
             || mCombo->font() != qt_app_fonts_hash()->value("QComboBox", QFont())) {
         menuOption.font = mCombo->font();
     } else {
-        QVariant fontRoleData = index.data(Qt::FontRole);
-        if (fontRoleData.isValid())
-            menuOption.font = fontRoleData.value<QFont>();
-        else
-            menuOption.font = qt_app_fonts_hash()->value("QComboMenuItem", mCombo->font());
+        menuOption.font = qt_app_fonts_hash()->value("QComboMenuItem", mCombo->font());
     }
 
     menuOption.fontMetrics = QFontMetrics(menuOption.font);
diff --git a/tests/auto/widgets/widgets/qcombobox/tst_qcombobox.cpp b/tests/auto/widgets/widgets/qcombobox/tst_qcombobox.cpp
index 816fe1faba..edaf033678 100644
--- a/tests/auto/widgets/widgets/qcombobox/tst_qcombobox.cpp
+++ b/tests/auto/widgets/widgets/qcombobox/tst_qcombobox.cpp
@@ -62,6 +62,7 @@
 #include <qstyleditemdelegate.h>
 #include <qstandarditemmodel.h>
 #include <qproxystyle.h>
+#include <qfont.h>
 
 static inline void setFrameless(QWidget *w)
 {
@@ -160,6 +161,7 @@ private slots:
     void respectChangedOwnershipOfItemView();
     void task_QTBUG_39088_inputMethodHints();
     void task_QTBUG_49831_scrollerNotActivated();
+    void task_QTBUG_56693_itemFontFromModel();
 };
 
 class MyAbstractItemDelegate : public QAbstractItemDelegate
@@ -3250,5 +3252,77 @@ void tst_QComboBox::task_QTBUG_49831_scrollerNotActivated()
     }
 }
 
+class QTBUG_56693_Model : public QStandardItemModel
+{
+public:
+    QTBUG_56693_Model(QObject *parent = Q_NULLPTR)
+        : QStandardItemModel(parent)
+    { }
+
+    QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override
+    {
+        if (role == Qt::FontRole) {
+            if (index.row() < 5) {
+                QFont font = QApplication::font();
+                font.setItalic(true);
+                return font;
+            } else {
+                return QApplication::font();
+            }
+        }
+        return QStandardItemModel::data(index, role);
+    }
+};
+
+class QTBUG_56693_ProxyStyle : public QProxyStyle
+{
+public:
+    QTBUG_56693_ProxyStyle(QStyle *style)
+        : QProxyStyle(style), italicItemsNo(0)
+    {
+
+    }
+
+    void drawControl(ControlElement element, const QStyleOption *opt, QPainter *p, const QWidget *w = Q_NULLPTR) const override
+    {
+        if (element == CE_MenuItem)
+            if (const QStyleOptionMenuItem *menuItem = qstyleoption_cast<const QStyleOptionMenuItem *>(opt))
+                if (menuItem->font.italic())
+                    italicItemsNo++;
+
+        baseStyle()->drawControl(element, opt, p, w);
+    }
+
+    mutable int italicItemsNo;
+};
+
+void tst_QComboBox::task_QTBUG_56693_itemFontFromModel()
+{
+    QComboBox box;
+    if (!qobject_cast<QComboMenuDelegate *>(box.itemDelegate()))
+        QSKIP("Only for combo boxes using QComboMenuDelegate");
+
+    QTBUG_56693_Model model;
+    box.setModel(&model);
+
+    QTBUG_56693_ProxyStyle *proxyStyle = new QTBUG_56693_ProxyStyle(box.style());
+    box.setStyle(proxyStyle);
+    box.setFont(QApplication::font());
+
+    for (int i = 0; i < 10; i++)
+        box.addItem(QLatin1String("Item ") + QString::number(i));
+
+    box.show();
+    QTest::qWaitForWindowExposed(&box);
+    box.showPopup();
+    QFrame *container = box.findChild<QComboBoxPrivateContainer *>();
+    QVERIFY(container);
+    QTest::qWaitForWindowExposed(container);
+
+    QCOMPARE(proxyStyle->italicItemsNo, 5);
+
+    box.hidePopup();
+}
+
 QTEST_MAIN(tst_QComboBox)
 #include "tst_qcombobox.moc"