SS Frederica was a passenger ferry that was built in Scotland in 1890 for the London and South Western Railway.

In 1890 J & G Thomson Ltd at Clydebank in Glasgow built a set of three sister ships for the LSWR's fast mail and passenger service between Southampton and the Channel Islands: Frederica, Lydia and Stella.

[4] She had twin screws, each powered by a three-cylinder triple expansion steam engine.

[4] Frederica was in Southampton and dressed for the opening of the new deep-water dock by Queen Victoria on 26 July 1890.

In 1912 she was sold to the Administration de Navigation a Vapeur Ottomane, who renamed her Nilufer and registered her in Constantinople.