Vincent Garcia has stated PSG star Dembele dominated the voting ahead of second-place Lamine Yamal, of Barcelona.
He told gathered reporters at the ceremony on Monday night: "There was no match.
"Ousmane won it by a wide margin. On all continents: Ousmane Dembélé's Ballon d'Or is clear and unambiguous. It is a Ballon d'Or that is authoritative for our judges."
Without revealing the exact figures, the Ballon d'Or boss also indicated that the voting details would be published in the coming days, as is tradition.
Ballon d'Or top 10:
1) Ousmane Dembélé (PSG / France)
2) Lamine Yamal (FC Barcelone / Spain)
3) Vitinha (PSG / Portugal)
4) Mohamed Salah (Liverpool / Egypt)
5) Raphinha (FC Barcelone / Brazill)
6) Achraf Hakimi (PSG / Morocco)
7) Kylian Mbappé (Real Madrid / France)
8) Cole Palmer (Chelsea / England)
9) Gianluigi Donnarumma (PSG, Manchester City / Italy)
10) Nuno Mendes (PSG / Portugal)