Brian Jensen (* June 5, 1962, in Calgary, Canada) is a Canadian actor who has appeared in numerous film and television productions.

He starred in The 6th Day (2000), The 13th Warrior (1999), and Dark Angel (2000–2002). In addition to his film roles, he has appeared in various series, including Stargate SG-1 (1997–2002), Hell on Wheels (2012), and Fargo (2014). Jensen began his career in theater and has performed in over 30 different stage productions. He has played roles in Shakespearean plays such as Hamlet and Titus Andronicus.