You can rename a project, and have all references changed using the refactoring engine. To rename a project: In the C/C++ Projects view, right-click a project, and select Rename . The edit box is activated for the selected project. Type a new name. Press Enter . Note: Renaming a project causes it to be re-indexed. This can take a significant amount of time for very large projects. The new name must be unique within the workspace. Source: http://help.eclipse.org/juno/index.jsp?topic=%2Forg.eclipse.cdt.doc.user%2Ftasks%2Fcdt_t_proj_rename.htm