Olga Karmansky (born ) is an American individual rhythmic gymnast. She represents her nation at international competitions. At the 2001 Pan American Gymnastics Championships she won the gold medal in the team all-around, individual all-around and hoop events and the bronze medal in the ball and rope events. Karmansky participated at the 2003 Pan American Games where she won two silver medals, in the individual all-around and ball events. Just like in 2001 she won the gold medal in the team all-around event at the 2005 Pan American Gymnastics Championships, and further the silver medal in the clubs event and the bronze medal in the ball and ribbon events. She competed at world championships, including at the 2005 World Rhythmic Gymnastics Championships.