Melanie Roach (née Kosoff; born December 15, 1974) is an Olympic weightlifter for the United States.

She started training in 1994 once meeting coach John Thrush at Calpian Weightlifting Club.

By 1998 she was number one in the US, and set the world record, since bested, for the women's clean & jerk by lifting more than twice her weight, 113 kg/250 lbs.

She then focused on starting a family with husband Dan Roach, who served as a Republican in the Washington House of Representatives from the 31st legislative district.

[1] Dan is the son of Pam Roach, served as a Washington State Senator from the same district.