Mark Lenard (* 15. Oktober 1924 als Leonard Rosenson in Chicago, Illinois; † 22. November 1996 in New York City) war ein US-amerikanischer Schauspieler. ()
Mark Lenard is an actor, perhaps best known for his many roles in the Star Trek universe. Lenard played a Klingon, a Romulan, and a Vulcan in the original '60s Star Trek TV show, and memorably played Sarek, Spock's Vulcan father, in several Star Trek movies and later TV shows.