José Bademian Orchanian (27 April 1927 – 25 August 2013) was a Uruguayan chess FIDE Master (FM) of Armenian origin and a winner of the Uruguayan Chess Championship (1976).

In the 1970s and 1980s José Bademian Orchanian was one of leading Uruguayan chess players. He won three medals in Uruguayan Chess Championships: gold (1976), silver (1974) and bronze (1987). José Bademian Orchanian twice participated in Pan American Chess Championships.^[1] He was a multiple participant in the traditional Mar del Plata chess tournament.

José Bademian Orchanian played for Uruguay in the Chess Olympiads:^[2]

• in 1974, at the second board in the 21st Chess Olympiad in Nice (+7, =3, −7),
• in 1976, at the second board in the 22nd Chess Olympiad in Haifa (+5, =2, −3),
• in 1978, at the fourth board in the 23rd Chess Olympiad in Buenos Aires (+4, =4, −3),
• in 1986, at the fourth board in the 27th Chess Olympiad in Dubai (+3, =0, −4).

José Bademian Orchanian played for Uruguay in the Pan American Team Chess Championship:^[3]

• in 1987, at the second board in the 3rd Panamerican Team Chess Championship in Junín (+0, =0, −8).