Heidi Mark is an American model and actress. Heidi is of Finnish origin. Her father was born in Helsinki, Finland. She worked at her father's law office and Hooters. She is Playboy's Playmate of the Month for July 1995. Prior to being a Playmate, she appeared on the cover of the April, 1994 issue of the magazine.

Mark was married to Vince Neil of Mötley Crüe on May 28, 2000; she filed for divorce in August of 2001, citing "irreconcilable differences".