Police say the 23-year-old was walking across a footbridge into Fane Street when he was approached by two men who shouted racist comments at him.
He was then stabbed in the right leg with a small knife.
Paramedics took him to hospital where he was treated for his injury.
The attackers described as being about 20 years of age.
One was wearing a grey Adidas tracksuit with blue lines, the other was wearing a blue raincoat and charcoal coloured tracksuit bottoms with blue lines.
Detectives in south Belfast have appealed for witnesses to the incident to contact them on 101.