Alison Elizabeth "Ali" Larter (born February 28, 1976) is an American actress and former fashion model who is perhaps best known for her performances aimed at teenage audiences, most notably the TV series Heroes (2006–present) and the Hollywood films Varsity Blues (1999), House on Haunted Hill (1999), Final Destination (2000), Legally Blonde (2001) and Resident Evil: Extinction (2007).

In November 1996, Larter played the hoax model Allegra Coleman in Esquire magazine. Even after the hoax had been revealed, its effects lingered, and she was wooed by various agencies. Larter landed her first professional role in 1997, in the television series Chicago Sons. The role was followed by a number of other appearances on several television series, including Dawson's Creek, Chicago Hope and Just Shoot Me!

In 1999, Larter began her film career with appearances in Varsity Blues and House on Haunted Hill. During the next few years, she appeared in a number of movies aimed at a teenage audience, including the box office successes Legally Blonde and Final Destination. In 2001, Larter performed in the stage play The Vagina Monologues in New York City. In 2002, Larter was ranked #40 in Stuff magazine's "102 Sexiest Women in the World".

As of September 2006, Larter is portraying Niki Sanders on the NBC TV series Heroes, and is scheduled to play Claire Redfield in Resident Evil: Extinction (2007).

In the February 2007 issue of Stuff Magazine, Larter dishes about her role on Heroes. "I'm drawn to playing strong women."

Larter is a close friend of actress Amy Smart with whom she co-starred in Varsity Blues. Her best friend is former Sam's Kid Erick Alegria. Larter has previously lived in Miami, Florida and currently lives in New York City, having moved there in the spring of 2002.