Paolo Donaggio (born 1940) is an Italian open water swimmer known as il Coccodrillo (The Crocodile), who was inducted in the International Marathon Swimming Hall of Fame in 1980 as an Honour Swimmer for a number of ultra-marathon swims in Italy.
In 1971 in S. Donato Milanese, he swam 24 hours in the pool, swimming 59,800 meters. In 1972 in Venice, he swam 35 km in 8 hours. In 1973, in Pavia-Venice along the Po River, the Adriatic and the lagoon of Venice, he swam 416 km in 83 hours. In 1974, he swam 135 km across Lake Como in Como, Italy in 36 hours. In 1975, he swam 160 km across the Adriatic Sea in 50 hours. In 1976 in Milan, he swam 70,693 meters in 24 hours in a pool. In 1976 from Monaco to Genoa, he swam 185 km in 72 hours. In 1977, from Trieste to Venice, he swam 109 km in 38 hours. In 1978 from Venice to Portorose, he swam 140 km in 35 hours. In 1978, he was recognized by the World Professional Marathon Swimming Federation for his exceptional marathon feats. Donaggio swam 30 km from Chioggia to Venice, Italy in 2006 at the age of 66 years in 7 hours 50 minutes along the canals of Pellestrina. In 2010 at the Donaggio Marathon from Stra to Venice (in conjunction with the Venice Marathon), he swam 34 km.