Adrienne Frantz (born June 7, 1978 in Mount Clemens, Michigan) is an Emmy Award-winning American actress, best known for her role as Ambrosia "Amber" Moore on the soap opera The Bold and the Beautiful, which she now plays on The Young and the Restless. While on B&B, she also played Amber's sister, April Knight, briefly in 2003.

First breaking into the soap opera genre in 1997 as Tiffany Thorne on Sunset Beach, she left the show later that year for her role as the villainess turned sympathetic heroine Amber on The Bold and the Beautiful. In 2001, she won a Daytime Emmy for Outstanding Younger Actress. Frantz played the role on B&B until 2005, when she left to focus on a music career.