diff --git a/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/nodeinstanceserver.cpp b/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/nodeinstanceserver.cpp
index fe4ba684879..c9789f01108 100644
--- a/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/nodeinstanceserver.cpp
+++ b/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/nodeinstanceserver.cpp
@@ -65,7 +65,6 @@
 #include "informationchangedcommand.h"
 #include "pixmapchangedcommand.h"
 #include "commondefines.h"
-#include "childrenchangeeventfilter.h"
 #include "changestatecommand.h"
 #include "childrenchangedcommand.h"
 #include "completecomponentcommand.h"
diff --git a/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/qt5informationnodeinstanceserver.cpp b/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/qt5informationnodeinstanceserver.cpp
index 8f6c458521b..0d22f113725 100644
--- a/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/qt5informationnodeinstanceserver.cpp
+++ b/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/qt5informationnodeinstanceserver.cpp
@@ -52,7 +52,6 @@
 #include "informationchangedcommand.h"
 #include "pixmapchangedcommand.h"
 #include "commondefines.h"
-#include "childrenchangeeventfilter.h"
 #include "changestatecommand.h"
 #include "childrenchangedcommand.h"
 #include "completecomponentcommand.h"
diff --git a/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/qt5rendernodeinstanceserver.cpp b/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/qt5rendernodeinstanceserver.cpp
index 26772f42ced..9d7f8dd449f 100644
--- a/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/qt5rendernodeinstanceserver.cpp
+++ b/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/qt5rendernodeinstanceserver.cpp
@@ -52,7 +52,6 @@
 #include "informationchangedcommand.h"
 #include "pixmapchangedcommand.h"
 #include "commondefines.h"
-#include "childrenchangeeventfilter.h"
 #include "changestatecommand.h"
 #include "childrenchangedcommand.h"
 #include "completecomponentcommand.h"
diff --git a/share/qtcreator/qml/qmlpuppet/qmlpuppet/instances/nodeinstanceserver.cpp b/share/qtcreator/qml/qmlpuppet/qmlpuppet/instances/nodeinstanceserver.cpp
index 2f74cef3895..f6d111173f8 100644
--- a/share/qtcreator/qml/qmlpuppet/qmlpuppet/instances/nodeinstanceserver.cpp
+++ b/share/qtcreator/qml/qmlpuppet/qmlpuppet/instances/nodeinstanceserver.cpp
@@ -65,7 +65,6 @@
 #include "informationchangedcommand.h"
 #include "pixmapchangedcommand.h"
 #include "commondefines.h"
-#include "childrenchangeeventfilter.h"
 #include "changestatecommand.h"
 #include "childrenchangedcommand.h"
 #include "completecomponentcommand.h"
diff --git a/share/qtcreator/qml/qmlpuppet/qmlpuppet/instances/qt4informationnodeinstanceserver.cpp b/share/qtcreator/qml/qmlpuppet/qmlpuppet/instances/qt4informationnodeinstanceserver.cpp
index ecb4204989c..70b60c6e176 100644
--- a/share/qtcreator/qml/qmlpuppet/qmlpuppet/instances/qt4informationnodeinstanceserver.cpp
+++ b/share/qtcreator/qml/qmlpuppet/qmlpuppet/instances/qt4informationnodeinstanceserver.cpp
@@ -66,7 +66,6 @@
 #include "informationchangedcommand.h"
 #include "pixmapchangedcommand.h"
 #include "commondefines.h"
-#include "childrenchangeeventfilter.h"
 #include "changestatecommand.h"
 #include "childrenchangedcommand.h"
 #include "completecomponentcommand.h"
diff --git a/share/qtcreator/qml/qmlpuppet/qmlpuppet/instances/qt4rendernodeinstanceserver.cpp b/share/qtcreator/qml/qmlpuppet/qmlpuppet/instances/qt4rendernodeinstanceserver.cpp
index 26e2e8c171c..3c7790b674f 100644
--- a/share/qtcreator/qml/qmlpuppet/qmlpuppet/instances/qt4rendernodeinstanceserver.cpp
+++ b/share/qtcreator/qml/qmlpuppet/qmlpuppet/instances/qt4rendernodeinstanceserver.cpp
@@ -66,7 +66,6 @@
 #include "informationchangedcommand.h"
 #include "pixmapchangedcommand.h"
 #include "commondefines.h"
-#include "childrenchangeeventfilter.h"
 #include "changestatecommand.h"
 #include "childrenchangedcommand.h"
 #include "completecomponentcommand.h"
diff --git a/src/libs/cplusplus/CppDocument.cpp b/src/libs/cplusplus/CppDocument.cpp
index b4b89e903a3..f35784a0ff9 100644
--- a/src/libs/cplusplus/CppDocument.cpp
+++ b/src/libs/cplusplus/CppDocument.cpp
@@ -47,7 +47,6 @@
 #include <NameVisitor.h>
 #include <TypeVisitor.h>
 #include <CoreTypes.h>
-#include <LookupContext.h>
 
 #include <QByteArray>
 #include <QBitArray>
diff --git a/src/libs/qmleditorwidgets/contextpanewidget.cpp b/src/libs/qmleditorwidgets/contextpanewidget.cpp
index ea2b975090d..683bef38d1c 100644
--- a/src/libs/qmleditorwidgets/contextpanewidget.cpp
+++ b/src/libs/qmleditorwidgets/contextpanewidget.cpp
@@ -35,13 +35,11 @@
 #include <QFontComboBox>
 #include <QComboBox>
 #include <QSpinBox>
-#include <QToolButton>
 #include <QHBoxLayout>
 #include <QVBoxLayout>
 #include <QLabel>
 #include <QMouseEvent>
 #include <QGridLayout>
-#include <QToolButton>
 #include <QGraphicsEffect>
 #include <QAction>
 #include "contextpanetextwidget.h"
diff --git a/src/libs/qtcomponents/styleitem/qstyleplugin.cpp b/src/libs/qtcomponents/styleitem/qstyleplugin.cpp
index bda3b97949e..9894d7e1eab 100644
--- a/src/libs/qtcomponents/styleitem/qstyleplugin.cpp
+++ b/src/libs/qtcomponents/styleitem/qstyleplugin.cpp
@@ -37,7 +37,6 @@
 **
 ****************************************************************************/
 
-#include <qdeclarative.h>
 #include "qstyleplugin.h"
 #include "qstyleitem.h"
 #include "qrangemodel.h"
diff --git a/src/plugins/macros/macrooptionswidget.cpp b/src/plugins/macros/macrooptionswidget.cpp
index 629d6f40337..fede998dfaf 100644
--- a/src/plugins/macros/macrooptionswidget.cpp
+++ b/src/plugins/macros/macrooptionswidget.cpp
@@ -32,7 +32,6 @@
 #include "macrosconstants.h"
 #include "macromanager.h"
 #include "macro.h"
-#include "macrosconstants.h"
 
 #include <coreplugin/icore.h>
 #include <coreplugin/coreconstants.h>
diff --git a/src/plugins/projectexplorer/projectexplorer.cpp b/src/plugins/projectexplorer/projectexplorer.cpp
index 29e6e01b6e5..f1bb00e4ece 100644
--- a/src/plugins/projectexplorer/projectexplorer.cpp
+++ b/src/plugins/projectexplorer/projectexplorer.cpp
@@ -73,7 +73,6 @@
 #include "session.h"
 #include "projectnodes.h"
 #include "sessiondialog.h"
-#include "target.h"
 #include "projectexplorersettingspage.h"
 #include "projectwelcomepage.h"
 #include "corelistenercheckingforrunningbuild.h"
diff --git a/src/plugins/qmldesigner/designmodewidget.cpp b/src/plugins/qmldesigner/designmodewidget.cpp
index 3c82b3b7189..268f8928ba9 100644
--- a/src/plugins/qmldesigner/designmodewidget.cpp
+++ b/src/plugins/qmldesigner/designmodewidget.cpp
@@ -64,7 +64,6 @@
 #include <QPlainTextEdit>
 #include <QVBoxLayout>
 #include <QScrollArea>
-#include <QTabWidget>
 #include <QToolButton>
 #include <QMenu>
 #include <QClipboard>