Katherine Atkinson (; born November 27, 1996) is an American professional soccer player who plays as a goalkeeper for Chicago Stars FC of the National Women's Soccer League (NWSL). She played college soccer for the TCU Horned Frogs and the Arkansas Razorbacks. She began her professional career with the Washington Spirit before being selected by Racing Louisville in the 2020 NWSL Expansion Draft.
Racing Louisville selected Atkinson from Washington Spirit in the 2020 NWSL Expansion Draft. Atkinson led Racing Louisville FC to the inaugural Women's Cup win in August 2021.
Atkinson had a breakout season in 2022, setting the NWSL record for saves in a single season and being named to the NWSL Best XI for September/October. She started every regular-season game for Racing, posting six clean sheets.
Atkinson was one of three finalists for NWSL Goalkeeper of the Year for the 2023 season.
On December 15, 2025, Chicago Stars FC announced that they had signed Atkinson to a three-year contract through 2028.
She is married to Ryan Atkinson. The couple announced their engagement in November 2024.