diff --git a/dataengines/notifications/notificationaction.cpp b/dataengines/notifications/notificationaction.cpp
--- a/dataengines/notifications/notificationaction.cpp
+++ b/dataengines/notifications/notificationaction.cpp
@@ -77,6 +77,11 @@
     } else if (operationName() == QLatin1String("configureNotification")) {
         m_engine->configureNotification(parameters()[QStringLiteral("appRealName")].toString(),
                                         parameters()[QStringLiteral("eventId")].toString());
+    } else if (operationName() == QLatin1String("inhibit")) {
+        const QString hint = parameters()[QStringLiteral("hint")].toString();
+        const QString value = parameters()[QStringLiteral("value")].toString();
+        auto t = m_engine->createInhibition(hint, value);
+        setResult(QVariant::fromValue(t));
     }
 
     emitResult();
diff --git a/dataengines/notifications/notifications.operations b/dataengines/notifications/notifications.operations
--- a/dataengines/notifications/notifications.operations
+++ b/dataengines/notifications/notifications.operations
@@ -47,4 +47,11 @@
     </entry>
   </group>
 
+  <group name="inhibit">
+      <entry name="hint" type="String">
+      </entry>
+       <entry name="value" type="String">
+      </entry>
+  </group>
+
 </kcfg>
diff --git a/dataengines/notifications/notificationsengine.h b/dataengines/notifications/notificationsengine.h
--- a/dataengines/notifications/notificationsengine.h
+++ b/dataengines/notifications/notificationsengine.h
@@ -25,6 +25,14 @@
 #include <QSet>
 #include <QHash>
 
+struct NotificationInhibiton
+{
+    QString hint;
+    QString value;
+};
+
+typedef QSharedPointer<NotificationInhibiton> NotificationInhibitonPtr;
+
 /**
  *  Engine which provides data sources for notifications.
  *  Each notification is represented by one source.
@@ -58,6 +66,13 @@
 
     void configureNotification(const QString &appName, const QString &eventId = QString());
 
+    /*
+     * Block all notification where a given notification hint matches a given value.
+     *
+     * Inhibition is dropped when dereferenced.
+     */
+    NotificationInhibitonPtr createInhibition(const QString &hint, const QString &value);
+
 public Q_SLOTS:
     void removeNotification(uint id, uint closeReason);
     bool registerDBusService();
@@ -90,7 +105,11 @@
      */
     QHash<QString, uint> m_notificationsFromReplaceableApp;
 
+    QList<NotificationInhibiton*> m_inhibitions;
+
     friend class NotificationAction;
 };
 
+Q_DECLARE_METATYPE(NotificationInhibitonPtr);
+
 #endif
diff --git a/dataengines/notifications/notificationsengine.cpp b/dataengines/notifications/notificationsengine.cpp
--- a/dataengines/notifications/notificationsengine.cpp
+++ b/dataengines/notifications/notificationsengine.cpp
@@ -186,6 +186,13 @@
                                  const QString &app_icon, const QString &summary, const QString &body,
                                  const QStringList &actions, const QVariantMap &hints, int timeout)
 {
+    foreach(NotificationInhibiton *ni, m_inhibitions) {
+        if (hints[ni->hint] == ni->value) {
+            qDebug() << "notification inhibited. Skipping";
+            return -1;
+        }
+    }
+
     uint partOf = 0;
     const QString appRealName = hints[QStringLiteral("x-kde-appname")].toString();
     const QString eventId = hints[QStringLiteral("x-kde-eventId")].toString();
@@ -413,6 +420,20 @@
     }
 }
 
+QSharedPointer<NotificationInhibiton> NotificationsEngine::createInhibition(const QString &hint, const QString &value) {
+    auto ni = new NotificationInhibiton;
+    ni->hint = hint;
+    ni->value = value;
+
+    QSharedPointer<NotificationInhibiton> rc(ni, [this](NotificationInhibiton *ni) {
+        m_inhibitions.removeOne(ni);
+        delete ni;
+    });
+    m_inhibitions.append(ni);
+    return rc;
+}
+
+
 K_EXPORT_PLASMA_DATAENGINE_WITH_JSON(notifications, NotificationsEngine, "plasma-dataengine-notifications.json")
 
 #include "notificationsengine.moc"