diff --git a/share/qtcreator/translations/qtcreator_de.ts b/share/qtcreator/translations/qtcreator_de.ts
index 0f9b15ff734..baf7b75a9f2 100644
--- a/share/qtcreator/translations/qtcreator_de.ts
+++ b/share/qtcreator/translations/qtcreator_de.ts
@@ -50433,7 +50433,7 @@ Testfall &quot;%2&quot; wird nicht aufgezeichnet.</translation>
         <translation>Maximale Post-Mortem-Wartezeit:</translation>
     </message>
     <message>
-        <source>Specifies how many seconds Squish should wait after the the first AUT process has exited.</source>
+        <source>Specifies how many seconds Squish should wait after the first AUT process has exited.</source>
         <translation>Legt fest, wie viele Sekunden Squish wartet, nachdem der erste AUT-Prozess beendet ist.</translation>
     </message>
     <message>
diff --git a/share/qtcreator/translations/qtcreator_fr.ts b/share/qtcreator/translations/qtcreator_fr.ts
index 673d54af1ea..d87f7a9e68d 100644
--- a/share/qtcreator/translations/qtcreator_fr.ts
+++ b/share/qtcreator/translations/qtcreator_fr.ts
@@ -48829,7 +48829,7 @@ Refus d&apos;enregistrer le cas de test «&#xa0;%2&#xa0;».</translation>
         <translation>Temps maximal d&apos;attente après la fin&#xa0;:</translation>
     </message>
     <message>
-        <source>Specifies how many seconds Squish should wait after the the first AUT process has exited.</source>
+        <source>Specifies how many seconds Squish should wait after the first AUT process has exited.</source>
         <translation>Spécifie combien de secondes Squish doit attendre après la fin du premier processus de l&apos;AUT.</translation>
     </message>
     <message>
diff --git a/share/qtcreator/translations/qtcreator_zh_CN.ts b/share/qtcreator/translations/qtcreator_zh_CN.ts
index ff7a8e061ce..4e361b52d34 100644
--- a/share/qtcreator/translations/qtcreator_zh_CN.ts
+++ b/share/qtcreator/translations/qtcreator_zh_CN.ts
@@ -41142,7 +41142,7 @@ Refusing to record test case &quot;%2&quot;.</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <source>Specifies how many seconds Squish should wait after the the first AUT process has exited.</source>
+        <source>Specifies how many seconds Squish should wait after the first AUT process has exited.</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
diff --git a/src/libs/advanceddockingsystem/dockareatabbar.cpp b/src/libs/advanceddockingsystem/dockareatabbar.cpp
index 57e7c52da78..5575c53f5ac 100644
--- a/src/libs/advanceddockingsystem/dockareatabbar.cpp
+++ b/src/libs/advanceddockingsystem/dockareatabbar.cpp
@@ -140,7 +140,7 @@ void DockAreaTabBar::onCloseOtherTabsRequested(DockWidgetTab *sourceTab)
                              ? 1
                              : 0;
             closeTab(i);
-            // If the the dock widget blocks closing, i.e. if the flag CustomCloseHandling is set,
+            // If the dock widget blocks closing, i.e. if the flag CustomCloseHandling is set,
             // and the dock widget is still open, then we do not need to correct the index.
             if (currentTab->dockWidget()->isClosed())
                 i -= offset;
diff --git a/src/plugins/coreplugin/editormanager/ieditor.cpp b/src/plugins/coreplugin/editormanager/ieditor.cpp
index 892358c6892..ec29a07bda2 100644
--- a/src/plugins/coreplugin/editormanager/ieditor.cpp
+++ b/src/plugins/coreplugin/editormanager/ieditor.cpp
@@ -14,7 +14,7 @@
     IEditor instances are usually created by a corresponding IEditorFactory.
 
     An IEditor instance provides an editor widget for a single IDocument via
-    the IContext::widget() method. If the the editor type supports it, multiple
+    the IContext::widget() method. If the editor type supports it, multiple
     editors can be opened for the same document. Multiple IEditor instances
     share ownership of the same IDocument instance in that case.
 
diff --git a/src/plugins/coreplugin/find/basetextfind.cpp b/src/plugins/coreplugin/find/basetextfind.cpp
index a11bf7d33da..aab6e1d0889 100644
--- a/src/plugins/coreplugin/find/basetextfind.cpp
+++ b/src/plugins/coreplugin/find/basetextfind.cpp
@@ -249,7 +249,7 @@ void BaseTextFind::replace(const QString &before, const QString &after, FindFlag
     setTextCursor(cursor);
 }
 
-// QTextCursor::insert moves all other QTextCursors that are the the insertion point forward.
+// QTextCursor::insert moves all other QTextCursors that are the insertion point forward.
 // We do not want that for the replace operation, because then e.g. the find scope would move when
 // replacing a match at the start.
 static void insertTextAfterSelection(const QString &text, QTextCursor &cursor)
diff --git a/src/plugins/ios/createsimulatordialog.cpp b/src/plugins/ios/createsimulatordialog.cpp
index 32884c5e426..e658fef07c6 100644
--- a/src/plugins/ios/createsimulatordialog.cpp
+++ b/src/plugins/ios/createsimulatordialog.cpp
@@ -77,7 +77,7 @@ CreateSimulatorDialog::~CreateSimulatorDialog()
 }
 
 /*!
-    Returns the the simulator name entered by user.
+    Returns the simulator name entered by user.
  */
 QString CreateSimulatorDialog::name() const
 {
@@ -85,7 +85,7 @@ QString CreateSimulatorDialog::name() const
 }
 
 /*!
-    Returns the the simulator runtime (OS version) selected by user.
+    Returns the simulator runtime (OS version) selected by user.
     Though the runtimes are filtered by the selected device type but the runtime camppatibility is
     not checked. i.e. User can select the Runtime iOS 10.2 for iPhone 4 but the combination is not
     possible as iOS 10.2 is not compatible with iPhone 4. In this case the command to create
@@ -97,7 +97,7 @@ RuntimeInfo CreateSimulatorDialog::runtime() const
 }
 
 /*!
-    Returns the the selected device type.
+    Returns the selected device type.
  */
 DeviceTypeInfo CreateSimulatorDialog::deviceType() const
 {
diff --git a/src/plugins/qmlprojectmanager/buildsystem/projectitem/converters.cpp b/src/plugins/qmlprojectmanager/buildsystem/projectitem/converters.cpp
index 3d75f4c9e45..ce0233fcf20 100644
--- a/src/plugins/qmlprojectmanager/buildsystem/projectitem/converters.cpp
+++ b/src/plugins/qmlprojectmanager/buildsystem/projectitem/converters.cpp
@@ -218,7 +218,7 @@ QJsonObject qmlProjectTojson(const Utils::FilePath &projectFile)
     QJsonObject mcuObject;
     QJsonObject shaderToolObject;
 
-    // convert the the non-object props
+    // convert the non-object props
     for (const QString &propName : rootNode->propertyNames()) {
         QJsonObject *currentObj = &rootObject;
         QString objKey = QString(propName).remove("QDS.", Qt::CaseInsensitive);
@@ -267,7 +267,7 @@ QJsonObject qmlProjectTojson(const Utils::FilePath &projectFile)
         versionObject.insert("qt", "5");
     }
 
-    // convert the the object props
+    // convert the object props
     for (const QmlJS::SimpleReaderNode::Ptr &childNode : rootNode->children()) {
         if (childNode->name().contains("files", Qt::CaseInsensitive)) {
             PropsPair propsPair;
diff --git a/src/plugins/squish/squishsettings.cpp b/src/plugins/squish/squishsettings.cpp
index bfa0a127d18..a8e0518a3de 100644
--- a/src/plugins/squish/squishsettings.cpp
+++ b/src/plugins/squish/squishsettings.cpp
@@ -160,7 +160,7 @@ SquishServerSettings::SquishServerSettings()
     responseTimeout.setSuffix("s");
 
     postMortemWaitTime.setLabel(Tr::tr("Maximum post-mortem wait time:"));
-    postMortemWaitTime.setToolTip(Tr::tr("Specifies how many seconds Squish should wait after the the "
+    postMortemWaitTime.setToolTip(Tr::tr("Specifies how many seconds Squish should wait after the "
                                      "first AUT process has exited."));
     postMortemWaitTime.setRange(1, 65535);
     postMortemWaitTime.setDefaultValue(1500);