Apsley Marina is a secure, modern basin on the Grand Union Canal in Apsley, a suburb of Hemel Hempstead, Hertfordshire. This stretch of the canal is formed from the River Gade.

The marina occupies part of the historic site of the former Dickinson Paper Mill, where the canal once carried raw materials for the area's paper manufacturing industry.

The marina offers residential, leisure, visitor, and winter moorings for narrowboats, with mooring rings and bollards available. Boater facilities include chemical toilet disposal, a boater-operated pump-out, and rubbish disposal.

Unofficial towpath access is available on site. The location sits between Papermill Footbridge and Apsley End Bridge on the Grand Union Canal main line.