János Bogár (born July 26, 1964, in Miskolc, Hungary) is a Hungarian ultramarathon runner.

Bogár has set and held national records in nearly all Hungarian ultramarathon events in which he has competed.

[citation needed] He is best known for his six victories at the Vienna to Budapest Supermarathon, the most prestigious stage race in Central Europe in the 1990s.

[1] [2] The highlights of his ultramarathon career include his European Championship title in the 24-hour event earned in Szeged, Hungary in 1994, his seven victories at the 100 km of Madrid, six victories at the Vienna to Budapest Supermarathon (1992, 1994- 1998) and one at a popular 245 km race between Athens and Sparta (1991).

[3] In 2007 Bogár was the first runner in the history of ultra-running to come close to beat the world's most notable icon of ultramarathon running, Yiannis Kouros in a 212 km race around Lake Balaton, the largest lake in Central Europe.