| Clubname: | Union Quinto |
| Fullname: | Associazione Sportiva Dilettantistica Union Quinto |
| Founded: | 1937 |
| Manager: | Silvano Favarato[1] |
| Position: | Serie D/C, 20th |
| Pattern B1: | _navystripes |
| Leftarm1: | FF0000 |
| Body1: | FF0000 |
| Rightarm1: | FF0000 |
| Shorts1: | 000080 |
| Socks1: | 000080 |
| Leftarm2: | 000080 |
| Body2: | 000080 |
| Rightarm2: | 000080 |
| Shorts2: | FF0000 |
| Socks2: | FF0000 |
Associazione Sportiva Dilettantistica Union Quinto is an Italian association football club located in Quinto di Treviso, Veneto.
It currently plays in Eccellenza Veneto.
The club was founded in 1937.
Its colors are red and blue.