1920 Országos Bajnokság I (men's water polo)

The 1920 Országos Bajnokság I was the top-tier championship of men's water polo in Hungary. It represents the highest level of competition for men's water polo clubs in Hungary during that year. The "Országos Bajnokság I" designation signifies the first national championship, denoting its premier status within the Hungarian water polo league system. Information regarding the specific participating teams, the tournament format, and the ultimate champion of the 1920 season is crucial to fully understand the significance of this championship in the context of Hungarian water polo history. Further research is needed to provide a more comprehensive overview.