| Birth Date: | 20 October 1897 |
| Birth Place: | Genoa, Italy |
| Death Place: | Sampierdarena, Italy |
Agostino Frassinetti (20 October 1897 – 16 March 1967) was an Italian freestyle swimmer who competed in the 1920 Summer Olympics and in the 1924 Summer Olympics.[1] He was born in Genoa. In 1920 he was a member of the Italian relay team which finished fifth in the 4 x 200 metre freestyle relay competition. In the 100 metre freestyle event he was eliminated in the semi-finals. Four years later at the Paris Games he was eliminated with the Italian relay team in the semi-finals of the 4 x 200 metre freestyle relay contest.[2]