Shannon Lee Tweed (born March 10, 1957), St. John's, Newfoundland is a Canadian actress and model who has acted primarily in soft core low budget films. She is the daughter of a mink rancher and is the oldest of seven siblings.

Shannon became involved in beauty pageants at a young age. After the Canadian wish-fulfillment TV series Thrill of a Lifetime arranged for her to pose for Hugh Hefner's Playboy, she gained fame as the Playmate of the Year for 1982. She was briefly involved with Hugh Hefner at that time. Since then, Shannon has primarily acted in TV series (including a guest appearance in Frasier) and B movies.

Shannon has appeared in over 60 films over the past twenty years. She is one of the best known actresses of mainstream erotica, and she is identified with the genre of the erotic thriller--most notably her movies Night Eyes 2 & 3. Most of them seem to involve her having sex with people of various professions such as detectives, lawyers and evil geniuses. In addition to having sex, she frequently gets to beat up the bad guys while wearing figure-hugging outfits e.g. No Contest or catfight with a nemesis. She is also identified with one of the more well-known of bizarre and amusing titles in films: Cannibal Women in the Avocado Jungle of Death (1989).

Shannon has played bad characters just as frequently as good characters. One memorable evil character was Electra, a kind of superhuman dominatrix intent on world domination. On rare occasions she has made it into mainstream films such as Detroit Rock City, but only in minor roles.

She lives with Gene Simmons of KISS (they are not married) and they have two children. She occasionally acts (and models) with her younger sister, Tracy Tweed.

Her appearances in Playboy Special Editions

• Playboy's Women of Television 1984.
• Playboy's Blondes, Brunettes & Redheads July 1985.
• Playboy's Book of Lingerie Vol. 2 March 1987 - cover.
• Playboy's Wet & Wild Women July 1987 - page 36.
• Playboy's Women on the Move September 1988.
• Playboy's Book of Lingerie Vol. 6 March 1989.
• Playboy's Book of Lingerie Vol. 10 November 1989.
• Playboy's Blondes, Brunettes, Redheads February 1990.
• Playboy's Nudes October 1990.
• Playboy's Sisters March 1992 (with her sister Tracy Tweed).
• Playboy's Blondes, Brunettes & Redheads August 1993.
• Playboy's Beauty Queens August 1994.
• Playboy's Wet & Wild Playmates September 1994 - pages 12-13.
• Playboy's Nudes November 1994 (with her sister Tracy Tweed).
• Playboy's Hot Denim Daze May 1995 - page 44 (with her sister Tracy Tweed).
• Playboy's Nude Celebrities June 1995.
• Playboy's Playmates in Bed February 1999 - pages 18-19.
• Playboy's Celebrating Centerfolds Vol. 2 April 1999 - pages 18-19.
• Playboy's Book of Lingerie Vol. 76 November 2000.