Dagmara "Daga" Wozniak (Polish: Woźniak; born July 1, 1988) is an American saber fencer.

[4][5][6] Wozniak graduated from Colonia High School in Woodbridge Township, New Jersey in 2006.

[9][5][6] She has trained at the Manhattan Fencing Center since high school, and her coach is Yury Gelman.

She became a full member of the U.S. team at the 2012 Olympic Games and placed eighth, losing to Sofiya Velikaya of Russia in the quarterfinals by the score of 15–13.

[5] She represented the United States at the 2016 Summer Olympics in Rio de Janeiro.