| Marlon Acácio | |
| Birth Date: | 9 July 1982 |
| Birth Place: | Johannesburg, South Africa[1] |
| Sport: | Judo |
| Club: | Tuks Judo Club, Pretoria |
| Coach: | Nikola Filipov[2] |
| Height: | 180 cm[3] |
| Show-Medals: | yes |
Marlon Acácio, previously known as Marlon August, (born July 9, 1982) is a judoka. Competing for South Africa in the 73 kg division he won a bronze medal at the 2008 African Championships and reached quarterfinals at the 2008 Olympics.[2] At the 2016 Summer Olympics he competed for Mozambique in the 81 kg division, and was eliminated in the first bout.[3]
Acácio was born in Johannesburg to Mozambican parents. He is married to Evagelia August. He co-owns the Conscious Healing Centre, a wellness and personal development facility in Johannesburg.[2] After the 2008 Olympics he retired from sport for 4 years due to the lack of sponsorship and worked for an import company in Johannesburg. After that he changed nationality and last name and competed for Mozambique.