Cindy K. Ambuehl (born January 31, 1965 in Los Angeles, California) is an American actress and fashion designer.

Before she was an actress, Ambeuhl was signed by the Judith Fontaine Modeling and Talent Agency as a model. She appeared in Seinfeld as Sophie in the season 9 episode "The Burning". From 2000–2003, she had a recurring role on the television series JAG as a TV producer and Harmon Rabb's girlfriend, Rene Peterson.

Personal life
She is married to actor Don Diamont. Cindy and Don have twin sons, born in 2003.