Sydney Affolter is an American college basketball player for the Iowa Hawkeyes of the Big Ten Conference.

[3] She went undefeated in 48 games with Amateur Athletic Union (AAU) team All Iowa Attack in the summer of 2020.

She played off the bench as Iowa reached the title game in the 2023 NCAA tournament.

[5] She joined the team's starting lineup in the 2024 postseason after an injury to guard Molly Davis.

[6] She recorded 11 points and 11 rebounds in Iowa's victory in the 2024 Big Ten title game and was recognized with all-tournament honors.