1971 Országos Bajnokság I (men's water polo)

The 1971 Országos Bajnokság I (OB I) was the top-level men's water polo league in Hungary for the 1971 season. It represents the national championship of Hungary in men's water polo. The term "Országos Bajnokság I" directly translates to "National Championship I" and is used across various sports in Hungary to denote the highest league. This specific entry refers to the water polo edition. The winning team was usually declared the Hungarian Champion for that year. Details of the participating teams, final standings, key players, and notable matches would typically be found in Hungarian sports archives and publications covering the 1971 season.