Agata Sitko (born 19 November 2002) is a Polish heavyweight powerlifter, competing in the IPF.

[4] She competed in the raw and equipped junior championships, where she won silver in both of the competitions respectively in the 76 kilogram weight class.

[6] Sitko qualified for the 2022 World Games[7] at 19 years old, competing as a Heavyweight, and would secure first place.

[9] At the 2024 SBD Sheffield Powerlifting Championships, Sitko competed in the 69 kilogram weight class for the first time, and would break three open and junior world records.

[12] At the 2025 SBD Sheffield Powerlifting Championships, Sitko returned to compete in the 69 kilogram weight class at age 22.