Andrea Longo (born 26 June 1975 in Piove di Sacco) is a former Italian middle-distance runner.

He achieved his personal best just before Sydney Olympics, running 1'43"74 in Rieti in September 2000, reaching the second place in the all-time ranking in Italy, behind former world record holder Marcello Fiasconaro.

He was disqualified from the 800 metres final at the 2000 Summer Olympics after barging Switzerland's André Bucher.

He served a two-year ban from 2001 for testing positive for nandrolone.

[1] Andrea Longo has won 7 times the individual national championship.