MV Morocco Sun is a passenger vessel built for British Railways in 1979.

The MV Galloway Princess was built in 1979 by Harland & Wolff, Belfast for Sealink (although chartered from IBOS Finance Ltd).

She was built specifically to serve on the Larne to Stranraer route.

She measured 12,175 Gross Register Tons, and fitted with two Pielstick 16PC2V diesel engines could achieve a speed of 19 knots.

Stena sold her in 2002 to the International Maritime Transport Corporation, Morocco and she was renamed Le Rif.