Stephanie Niemer (born September 3, 1989) is a female American volleyballer, playing as an Outside Hitter.

[2] After three years in Puerto Rico, Stefani Niemer in 2014 traveled for first time in Europe, signing in French ASPTT Mulhouse.

In 2015–16 season she played for Azeryol Baku and she was voted 2015–16 Azerbaijan Volleyball Super League "Best outside hitter".

In 2016 she was selected to the Philippine Super Liga All-Stars team who competed at the 2016 FIVB Volleyball Women's Club World Championship.

[5] In 2017-18 season she won with the Piraeus club the CEV Women's Challenge Cup,[6] being the 3rd top scorer with 137 points and the 3rd best server with 19 aces in the whole competition.