Henning Mühlleitner (born 15 July 1997) is a German swimmer.

[1] He competed in the men's 400 metre freestyle event at the 2018 European Aquatics Championships, winning the bronze medal and a gold medal in the 4 × 200 m mixed freestyle relay.

At the 2022 European Aquatics Championships, Henning went on to achieve a bronze medal in the men's 400 metre freestyle.

He trains with his club coach, Matt Magee, at ONEflow Aquatics in Neckarsulm, Germany.

This biographical article related to a German swimmer is a stub.