Braslav Rabar (27 September 1919, Zagreb – 6 December 1973, Zagreb) was a Croatian-Yugoslavian chess International Master (1950) and chess writer. He was Yugoslav champion in 1951, and in 1953 again tied for the tournament lead, but lost a playoff match. He played for Yugoslavia in three chess Olympiads (1950, 1952, 1954), winning a total of five medals. Rabar was a co-inventor of the classification systems for the Chess Informant publications.