Tenacious may refer to:
Ships HMS Tenacious (R45), a 1943 Royal Navy destroyer , a British R-class destroyer (1916) RSS Tenacious, a Formidable-class frigate of the Republic of Singapore Navy USNS Tenacious, a United States Navy ocean surveillance ship SV Tenacious, a 2000 British sail training ship Tenacious (yacht), a racing yacht owned and skippered by Ted Turner and winner of the 1979 Fastnet Race
Other uses Tenacious (horse), an American Thoroughbred racehorse Tenacious Records, a record label founded by percussionist Alphonse Mouzon
See also Tenacious D, an American band started by Jack Black and Kyle Gass Tenacity (disambiguation)