Does Cristiano Ronaldo have Mongolian ancestry?

No.

According to media research, Ronaldo does not have Mongolian ancestry, but Ronaldo has one-eighth African ancestry. Cristiano Ronaldo's great-grandmother Isabel was born in Cape Verde. She immigrated to Funchal when she was 16 years old and married Cristiano Ronaldo's great-grandfather José.

Full name: Cristiano Ronaldo dos Santos Aveiro, referred to as Ronaldo, born on February 5, 1985 in Funchal, Madeira Island, Portugal, Portuguese professional football player , who plays as a winger and center, playing for Juventus Football Club in Serie A.