| Clubname: | União AC |
| Fullname: | União Atlético Clube |
| Ground: | Mirandão |
| Chrtitle: | President |
| Chairman: | Tiba |
| Mgrtitle: | Head coach |
| Manager: | Luiz Carlos Prima |
| Pattern B1: | _uniaoto24h |
| Pattern Sh1: | _uniaoto24h |
| Leftarm1: | FFFFFF |
| Body1: | FFFFFF |
| Rightarm1: | FFFFFF |
| Shorts1: | FFFFFF |
| Socks1: | FFFFFF |
| Pattern La2: | _uac21h |
| Pattern B2: | _uac21h |
| Pattern Ra2: | _uac21h |
| Pattern Sh2: | _bluesides |
| Leftarm2: | 000000 |
| Body2: | 000000 |
| Rightarm2: | 000000 |
| Shorts2: | 000000 |
| Socks2: | 0000FF |
| American: | true |
União Atlético Clube, formerly known as União Araguainense and União Carmolandense, is a Brazilian football club from Tocantins state.
Founded in 1992 in the city of Araguaína, it was state champion in 1994. He took a leave of absence from professional football for several years, returning in 2021 under the name União Carmolandense, operating in the city of Carmolândia.[1] In 2024, it definitively changed its name to União Atlético Clube, becoming state champion for the second time in its history.[2]