Marco Chiavarini (born 25 May 1972) is a former Italian middle-distance runner who was 6th at the 2000 European Indoor Championships in 800 metres.

[2] Italian 800 meters indoor champion 1995 At the end of 2020 outdoor season his personal best 1:45.05 in 800 m, ran in 1995, is still the 8th Italian best performance of all-time.

[3] This personal best in 1995 was also the 25th world best performance.

[4] Chiavarini won a national championship at individual senior level.

[6]