| Clubname: | US Opitergina |
| Fullname: | Unione Sportiva Opitergina |
| Nickname: | U.S.O. |
| Founded: | 1946 |
| Capacity: | 5,000 |
| Chairman: | Renato Bernardi |
| Manager: | Vacant |
| Season: | 2016–17 |
| Position: | Promozione Veneto/D, 6th |
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| Shorts1: | FF0000 |
| Socks1: | FF0000 |
| Pattern B2: | _unknown |
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Unione Sportiva Opitergina is an Italian association football club, based in Oderzo, Veneto. The club was founded in 1946 after the close of Second World War.[1]
Opitergina in the season 2010–11, from Serie D group C relegated, in the play-out, to Eccellenza Veneto, where it plays in the current season.
The team's colors are white and red.