SMS Mecklenburg ("His Majesty's Ship Mecklenburg") was fifth ship of the Wittelsbach class of pre-dreadnought battleships of the German Imperial Navy. Laid down in 1899 at the AG Vulcan shipyard in Stettin, she was finished in May 1903. Her sisters were Wittelsbach, Zähringen, Wettin, and Schwaben; they were the first capital ships built under the Navy Law of 1898, brought about by Admiral Alfred von Tirpitz.