Melissa Jon Seidemann (born June 26, 1990) is an American water polo player.

Youth National Team in 2006, which won the gold medal at the Pan-American Junior Games, being the leading scorer in the tournament with 20 goals.

Seidemann was also a member of the Youth National Team, going undefeated in Sydney, Australia the summer of 2007.

[1] Seidemann took a leave of absence from Stanford in 2012 so she could train with the U.S. national water polo team,[1] but graduated in 2013 with a degree in psychology.

She scored 11 goals in the Pan American Games, ranking third on the team, and the U.S. won the gold medal and qualified for the 2012 Summer Olympics.