| Diego Fumaça | |
| Fullname: | Diego César de Oliveira |
| Birth Date: | 18 December 1994 |
| Birth Place: | Barbacena, Brazil |
| Position: | Midfielder |
| Currentclub: | Atlético Goianiense |
| Clubnumber: | Athletic |
| Years1: | 2015 |
| Clubs1: | Araxá |
| Caps1: | 0 |
| Goals1: | 0 |
| Years2: | 2016 |
| Caps2: | 0 |
| Goals2: | 0 |
| Years3: | 2017 |
| Caps3: | 0 |
| Goals3: | 0 |
| Years4: | 2017–2018 |
| Caps4: | 0 |
| Goals4: | 0 |
| Years5: | 2018 |
| Caps5: | 0 |
| Goals5: | 0 |
| Years6: | 2019 |
| Caps6: | 0 |
| Goals6: | 0 |
| Years7: | 2019 |
| Caps7: | 1 |
| Goals7: | 0 |
| Years8: | 2019–2020 |
| Caps8: | 4 |
| Goals8: | 0 |
| Years9: | 2020–2021 |
| Caps9: | 14 |
| Goals9: | 0 |
| Years10: | 2021– |
| Caps10: | 33 |
| Goals10: | 0 |
| Years11: | 2021 |
| Clubs11: | → Villa Nova (loan) |
| Years12: | 2021 |
| Clubs12: | → Coimbra (loan) |
| Years13: | 2022 |
| Clubs13: | → Pouso Alegre (loan) |
| Caps13: | 5 |
| Goals13: | 0 |
| Years14: | 2022 |
| Clubs14: | → Helsingborgs IF (loan) |
| Caps14: | 10 |
| Goals14: | 0 |
| Years15: | 2023 |
| Clubs15: | → Vitória (loan) |
| Caps15: | 5 |
| Goals15: | 0 |
| Years16: | 2023 |
| Clubs16: | → Amazonas (loan) |
| Caps16: | 4 |
| Goals16: | 0 |
| Club-Update: | 12 August 2023 |
Diego César de Oliveira, commonly known as Diego Fumaça, is a Brazilian footballer who plays as a midfielder for Athletic.
Diego Fumaça spent his early years playing in the lower divisions of Campeonato Mineiro. He represented Araxá and Valeriodoce, won the Modulo II with Patrocinense and won the 2nd division with Ipatinga in 2017.[1] In 2019, he competed in Campeonato Goiano with Goiânia, and earned himself a transfer to Atlético Goianiense on 15 April 2019.[2] He made his national league debut for Atlético Goianiense in the Campeonato Brasileiro Série B match against Vitória on 26 May 2019, coming on as a late substitute in the 1–1 draw.[3]