| Clubname: | ACD Guidonia Montecelio |
| Fullname: | Associazione Calcio Dilettantistica Guidonia Montecelio |
| Founded: | 1954 |
| Capacity: | 2,000 |
| Manager: | Stefano Giumento, dalla 9^Romolo Santolamazza |
| Position: | Serie D/G, 15th (relegated) |
| Pattern B1: | _rightwhiteangleshoulder |
| Leftarm1: | FF0000 |
| Body1: | FF0000 |
| Rightarm1: | FF0000 |
| Shorts1: | FF0000 |
| Socks1: | FF0000 |
| Leftarm2: | FFFFFF |
| Body2: | FFFFFF |
| Rightarm2: | FFFFFF |
| Shorts2: | FFFFFF |
| Socks2: | FFFFFF |
Associazione Calcio Dilettantistica Guidonia Montecelio is an Italian association football club located in Guidonia Montecelio, Lazio.
It in the season 2010–11, from Serie D group G relegated, in the play-out, to Eccellenza Lazio, where it plays in the current season.
Its colors are yellow and red.