diff --git a/fpicker/source/office/OfficeFilePicker.hxx b/fpicker/source/office/OfficeFilePicker.hxx
index 33e2b6d16e7c..4bac2df4be33 100644
--- a/fpicker/source/office/OfficeFilePicker.hxx
+++ b/fpicker/source/office/OfficeFilePicker.hxx
@@ -33,7 +33,6 @@
 
 #include <vector>
 
-class Dialog;
 struct FilterEntry;
 struct ElementEntry_Impl;
 enum class PickerFlags;
diff --git a/fpicker/source/office/OfficeFolderPicker.hxx b/fpicker/source/office/OfficeFolderPicker.hxx
index 7b98fb5bf903..73b0e3904561 100644
--- a/fpicker/source/office/OfficeFolderPicker.hxx
+++ b/fpicker/source/office/OfficeFolderPicker.hxx
@@ -24,8 +24,6 @@
 #include <com/sun/star/lang/XServiceInfo.hpp>
 #include "commonpicker.hxx"
 
-class Dialog;
-
 typedef
     cppu::ImplInheritanceHelper<
         svt::OCommonPicker, css::ui::dialogs::XFolderPicker2,
diff --git a/fpicker/source/office/PlacesListBox.hxx b/fpicker/source/office/PlacesListBox.hxx
index 934126072d53..175b7806fc84 100644
--- a/fpicker/source/office/PlacesListBox.hxx
+++ b/fpicker/source/office/PlacesListBox.hxx
@@ -18,8 +18,6 @@
 
 typedef std::shared_ptr<Place> PlacePtr;
 
-class PlacesListBox;
-
 /** ListBox to handle Places.
   */
 class PlacesListBox
diff --git a/fpicker/source/office/fileview.hxx b/fpicker/source/office/fileview.hxx
index a19c2095507f..81f70cf5d97b 100644
--- a/fpicker/source/office/fileview.hxx
+++ b/fpicker/source/office/fileview.hxx
@@ -24,8 +24,6 @@
 #include <vcl/weld.hxx>
 #include <rtl/ustring.hxx>
 
-namespace com :: sun :: star :: ucb { class XContent; }
-
 // class SvtFileView -----------------------------------------------------
 
 class SvtFileView_Impl;
diff --git a/fpicker/source/office/fpdialogbase.hxx b/fpicker/source/office/fpdialogbase.hxx
index fea0f6e9766e..c57633cebb6f 100644
--- a/fpicker/source/office/fpdialogbase.hxx
+++ b/fpicker/source/office/fpdialogbase.hxx
@@ -25,7 +25,6 @@
 #include "pickercallbacks.hxx"
 
 class SvtFileView;
-class SvtFileDialogFilter_Impl;
 
 
 enum class PickerFlags {
diff --git a/fpicker/source/office/iodlg.hxx b/fpicker/source/office/iodlg.hxx
index 9de9261af2d7..e920d7deba91 100644
--- a/fpicker/source/office/iodlg.hxx
+++ b/fpicker/source/office/iodlg.hxx
@@ -37,7 +37,6 @@
 class SvtFileView;
 class SvtFileDialogFilter_Impl;
 class SvtExpFileDlg_Impl;
-class SvtURLBox;
 
 enum class AdjustFilterFlags {
     NONE            = 0x0000,
diff --git a/fpicker/source/office/iodlgimp.hxx b/fpicker/source/office/iodlgimp.hxx
index 11a9e89d2642..e34c2710205e 100644
--- a/fpicker/source/office/iodlgimp.hxx
+++ b/fpicker/source/office/iodlgimp.hxx
@@ -26,7 +26,6 @@
 #include <memory>
 #include <vector>
 
-class CheckBox;
 class SvtFileDialog;
 
 #define FILEDIALOG_DEF_EXTSEP       ';'