Amanda Righetti (born April 4, 1983 in St. George, Utah) is an American actress. She was raised in Las Vegas, Nevada and subsequently moved to Los Angeles to seek further acting opportunities. After securing a role in the pilot No Place Like Home, Righetti caught the eye of Fox executives. She played a regular guest character Hailey Nichol in the American teen drama The O.C. In the season finale of Season 2 of The O.C., her ex-boyfriend Jimmy Cooper jokes about life on the North Shore, the show she concurrently starred in, playing the role of Tessa Lewis.

In late 2005, Righetti starred in FOX's Reunion as Jenna Moretti.

Righetti appears on the cover of the November 2005 issue of FHM magazine. She was ranked #59 and #84 on the FHM 100 Sexiest Women of 2005 and 2006, respectively.

In 2006, Righetti signed on to star as the main female lead in Return to House on Haunted Hill.

In April 2008, she started as one of the lead girls in the remake of Friday The 13t