Brittny Gastineau (born 11 November 1982) is the daughter of former American Football player Mark Gastineau, whom she has not seen in 17 years, and Lisa Gastineau, with whom she stars on E!'s reality TV show The Gastineau Girls. Brittny also starred in another E! reality TV series, Filthy Rich - Cattle Drive.

She attended University of Alabama in Tuscaloosa, Alabama to study event planning before leaving to live with her mother in New York City where she is a socialite, currently trying to pursue a career in acting and modeling. She has had several different ventures into modeling, but has been told several times that she would need to lose a little more weight to be more valuable as a model. Despite this, she has received some work, such as an European advertising campaign for L'Or�al.

Brittny was a guest star on The View and has appeared on the covers and the inside of several magazines including Stuff, Hamptons Magazine, Lucire and was also named in Maxim magazine's �Hot 100� for 2005, coming in at number 60.