| Sergio Bello | |
| Nationality: | Italian |
| Sport: | Athletics |
| Event: | 400 metres |
| Club: | Snia Milan |
| Birth Date: | 1942 5, df=y |
| Birth Place: | Intra, Italy |
| Weight: | 700NaN0 |
| Pb: | 400 metres: 46"53 (1968) |
| Country: |  Italy |
Sergio Bello (born 6 May 1942) is an Italian former sprinter, third with the 4x400 metres relay at the 1971 European Athletics Championships. He was born in Intra.
Bello has 45 caps in Italy national athletics team (from 1961 to 1972).[1] In his career, he participated in three editions of the Olympic Games and won the Italian Athletics Championships 6 times.
| Year | Competition | Venue | Position | Event | Performance | Notes | |
|---|---|---|---|---|---|---|---|
| 1963 | Universiade | 3rd | 4 × 400 m relay | 3'13"8 | [2] | ||
| 1965 | Universiade | bgcolor=gold | 1st | 400 metres | 46"8 | [3] | |
| bgcolor=gold | 1st | 4 × 400 m relay | 3'08"5 | ||||
| 1966 | European Indoor Games | bgcolor=silver | 2nd | Medley relay | 3'22"2 | ||
| 1967 | Mediterranean Games | bgcolor=gold | 1st | 400 metres | 47"7 | [4] | |
| bgcolor=gold | 1st | 4 × 400 m relay | 3'12"6 | ||||
| Universiade | 3rd | 400 metres | 46"7 | ||||
| 1968 | Olympic Games |  Mexico City | 7th | 4 × 400 m relay | 3'04"6 | ||
| 1971 | Mediterranean Games | bgcolor=gold | 1st | 4 × 400 m relay | 3'07"5 | ||
| European Championships | 3rd | 4 × 400 m relay | 3'04"60 |