Marcello Guidi

Marcello Guidi (born 6 May 1997) is an Italian swimmer who specializes in open water swimming.

Career Guidi competed at the 2025 World Aquatics Championships and won a silver medal in the mixed team relay event with a time of 1:09:15.4.

In August 2026, he competed at the 2026 European Aquatics Championships and won a silver medal in the mixed team relay with a time of 1:03:41.34. He also finished in fifth place in the 10 km and sixth place in the 5 km open water events.