diff --git a/src/core/qgserror.h b/src/core/qgserror.h
index 27e66b9e1e8..a58cd7f792a 100644
--- a/src/core/qgserror.h
+++ b/src/core/qgserror.h
@@ -69,9 +69,6 @@ class CORE_EXPORT QgsErrorMessage
     QString mFile;
     QString mFunction;
     int mLine = 0;
-
-    //! Message format
-    Format mFormat = Text;
 };
 
 /**
diff --git a/src/core/raster/qgsrasterfilewriter.cpp b/src/core/raster/qgsrasterfilewriter.cpp
index afdbddaba4a..fcf49714091 100644
--- a/src/core/raster/qgsrasterfilewriter.cpp
+++ b/src/core/raster/qgsrasterfilewriter.cpp
@@ -497,7 +497,6 @@ QgsRasterFileWriter::WriterError QgsRasterFileWriter::writeImageRaster( QgsRaste
   void *greenData = qgsMalloc( mMaxTileWidth * mMaxTileHeight );
   void *blueData = qgsMalloc( mMaxTileWidth * mMaxTileHeight );
   void *alphaData = qgsMalloc( mMaxTileWidth * mMaxTileHeight );
-  QgsRectangle mapRect;
   int iterLeft = 0, iterTop = 0, iterCols = 0, iterRows = 0;
   int fileIndex = 0;
 
diff --git a/src/core/symbology/qgssymbollayerutils.cpp b/src/core/symbology/qgssymbollayerutils.cpp
index f773c1aa4b6..8d9daade071 100644
--- a/src/core/symbology/qgssymbollayerutils.cpp
+++ b/src/core/symbology/qgssymbollayerutils.cpp
@@ -1477,7 +1477,7 @@ bool QgsSymbolLayerUtils::convertPolygonSymbolizerToPointMarker( QDomElement &el
     int markIndex = -1;
     QColor fillColor, strokeColor;
     double strokeWidth = 1.0, size = 0.0, angle = 0.0;
-    QPointF anchor, offset;
+    QPointF offset;
 
     // Fill element can contain a GraphicFill element
     QDomElement graphicFillElem = fillElem.firstChildElement( QStringLiteral( "GraphicFill" ) );
diff --git a/src/providers/gpx/qgsgpxprovider.cpp b/src/providers/gpx/qgsgpxprovider.cpp
index 0e46e17263c..390015ccc59 100644
--- a/src/providers/gpx/qgsgpxprovider.cpp
+++ b/src/providers/gpx/qgsgpxprovider.cpp
@@ -216,7 +216,6 @@ bool QgsGPXProvider::addFeature( QgsFeature &f, Flags )
   bool success = false;
   QgsGpsObject *obj = nullptr;
   QgsAttributes attrs = f.attributes();
-  QgsAttributeMap::const_iterator it;
 
   // is it a waypoint?
   if ( mFeatureType == WaypointType && geo && wkbType == QgsWkbTypes::Point )