Jennifer Elise Cox (born November 29, 1969) is an American actress best known for her satirical portrayal of Jan Brady in The Brady Bunch Movie. (She originated the pastiche version of the role off Broadway in The Real Live Brady Bunch.) She also appeared in the films Fear and Loathing in Las Vegas, EdTV, and Bewitched.

Her television credits include Clueless, Hype TV, Murphy Brown, Moesha, Sex and the City, Will & Grace, Six Feet Under, Nip/Tuck, CSI: New York and the current Lifetime series Lovespring International and as "Amy Anderson" in the TBS series 10 Items or Less.