Hanna Miluska (born 29 May 1984) is a Swiss former swimmer, who specialized in freestyle events and open water marathon.

[2] She is also the daughter of former rower Ivan Miluška, who played for Czechoslovakia in the men's pairs at the 1968 Summer Olympics in Mexico City.

[3][4] Two years later, Miluska qualified for two swimming events at the 2004 Summer Olympics in Athens, by clearing a FINA B-standard entry time of 2:02.65 (200 m freestyle) from the World Championships in Barcelona, Spain.

[5][6] In the 200 m freestyle, Miluska challenged seven other swimmers on the third heat, including three-time Olympian Olena Lapunova of Ukraine.

Swimming the second leg, she recorded a split of 57.60, and the Swiss team finished the heats in twelfth overall with a final time of 2:02.75.