1907 Országos Bajnokság I (men's water polo) was the fourth waterpolo championship in

Hungary Hungary ( hu, Magyarország ) is a landlocked country in Central Europe. Spanning of the Carpathian Basin, it is bordered by Slovakia to the north, Ukraine to the northeast, Romania to the east and southeast, Serbia to the south, Croatia a ...

. There was only one participant, who thus won the champion without any match. At the end of the year Magyar Úszó Egylet was established and from this time this Union was responsible for organising the championships.

Sources

*Gyarmati Dezső: Aranykor (Hérodotosz Könyvkiadó és Értékesítő Bt., Budapest, 2002.) 1907 in water polo 1907 in Hungarian sport Seasons in Hungarian water polo competitions {{Hungary-waterpolo-competition-stub