Vice-Admiral Sir Robert Lewis Fitzgerald Kt KCH (1776 - 17 January 1844, Bath, Somerset) was a British naval officer of the 18th and 19th centuries. He served throughout the French Revolutionary Wars, most notably commanding the bomb vessel , but illness made him unable to go to sea during the Napoleonic Wars, with Fitzgerald instead commanding the Isle of Wight sea fencibles. Made a superannuated rear-admiral in 1825, he was restored as a vice-admiral in 1840.