Six merchant ships have been named Vienna.
Vienna, a pre1819 American sloop.Vienna, a schooner built in 1866, Canadian.Vienna, a schooner built in 1871, Official No. C950558.SS Vienna (1873), a bulk freighter built in 1873, Official No. US25875.SS Vienna (1894) a Great Eastern Railway ferrySS Vienna (1929), a London and North Eastern Railway passenger ship built in 1929 by John Brown & Company, Clydebank