Eliott Crestan (born 22 February 1999) is a Belgian middle-distance runner specialising in the 800 metres.

In 2024, he broke Ivo Van Damme's 800 metres national record that had stood for 48 years with a time of 1:42.43.

[3] He participated in the 2020 and 2024 Summer Olympics, reaching the semi-final stage in both.

[4][5] At the 2024 Summer Olympics in Paris in the men's 800 meters semifinals, Crestan ran the fastest non-final qualifying time in Olympic history of 1:43.72.

This biographical article relating to Belgian athletics is a stub.