| Marco Antônio | |
| Fullname: | Marco Antônio de Oliveira Coelho |
| Birth Date: | 15 July 2000 |
| Birth Place: | Belo Horizonte, Brazil |
| Height: | 1.82 m |
| Position: | Midfielder |
| Currentclub: | Operário |
| Clubnumber: | 10 |
| Youthyears1: | –2020 |
| Youthclubs1: | Cruzeiro |
| Years1: | 2020–2022 |
| Caps1: | 23 |
| Goals1: | 0 |
| Years2: | 2022 |
| Caps2: | 0 |
| Goals2: | 0 |
| Years3: | 2023– |
| Caps3: | 12 |
| Goals3: | 0 |
| Nationalyears1: | 2015 |
| Nationalteam1: | Brazil U15 |
| Nationalcaps1: | 1 |
| Nationalgoals1: | 1 |
| Club-Update: | 10:36, 7 June 2020 (UTC) |
Marco Antônio de Oliveira Coelho (born 15 July 2000), commonly known as Marco Antônio, is a Brazilian footballer who plays for Operário as a midfielder.