Terin Marie Humphrey (born August 14, 1986) is a United States gymnast. She was a member of the 2004 U.S. Olympic team in Athens, Greece where she helped the team to a silver medal. This was the best ever result achieved by an American Olympic gymnastics team away from home. Her teammates were Mohini Bhardwaj, Annia Hatch, Carly Patterson, Courtney Kupets and Courtney McCool. Terin competed on bars and beam in the team finals, and contributed solid scores of 9.587 and 9.487 respectively.

Humphrey was born in Saint Joseph, Missouri. She formerly trained with Dragon Gymnastics at Great American Gymnastic Express in Missouri with coaches Al and Armine Fong and gymnasts Courtney McCool and Sarah Shire.

She also competed in the event finals on the uneven bars and won a surprise silver medal for her country. This was the best bars result by an American woman in the Olympics since Amy Chow took silver in the 1996 Olympics. Terin placed third at the 2004 US Gymnastics Championships in Nashville, TN, improving on her sixth place performance the year before. In 2003, Terin Humphrey was a member of the first US National women's squad to win the World Team Championship, contributing one of her signature elegant, yet difficulty-packed floor routines.

Terin continued her career as a gymnast at the Univeristy of Alabama, a traditional power in women's collegiate gymnastics. In 2005, her freshman season, Humphrey helped her team to second place and won the NCAA Uneven Bars Individual National Championship. In mid 2006, Terin underwent surgery on both elbows, from which she is now fully recovered. She has competed throughout the 2006-7 season. At the NCAA finals her team had a disaster, faling to qualify for the Super Six for the first time in over a decade, but Humphrey bounced back from this disappointment and once again took the uneven bars title. Late into the 2008 season Terin retired from gymnastics due to conrinued back injuries.