Ridha Belkadi (1925-2012) was a Tunisian chess International Master (IM, 1974).

From the begin of 1960s to the begin of 1980s, Ridha Belkadi was one of the leading Tunisian chess players. He was the number 1 player prior to emergence of Slim Bouazis.

Ridha Belkadi played for Tunisia in the Chess Olympiads:^[1]

• In 1960, at first board in the 14th Chess Olympiad in Leipzig (+3, =2, -4),
• In 1962, at first board in the 15th Chess Olympiad in Varna (+8, =5, -4),
• In 1966, at first board in the 17th Chess Olympiad in Havana (+8, =5, -5),
• In 1968, at first board in the 18th Chess Olympiad in Lugano (+8, =5, -5),
• In 1970, at second board in the 19th Chess Olympiad in Siegen (+6, =5, -7),
• In 1972, at first board in the 20th Chess Olympiad in Skopje (+6, =10, -5),
• In 1974, at second board in the 21st Chess Olympiad in Nice (+4, =9, -2),
• In 1978, at second board in the 23rd Chess Olympiad in Buenos Aires (+5, =4, -3),
• In 1980, at second board in the 24th Chess Olympiad in La Valletta (+2, =4, -4).

Ridha Belkadi played for Tunisia in the European Team Chess Championship preliminaries:^[2]

• In 1973, at second board in the 5th European Team Chess Championship preliminaries (+0, =1, -1).

In 1976 in Tripoli Ridha Belkadi played for Tunisia and won team silver medal in the unofficial Chess Olympiad.^[3]

Ridha Belkadi was awarded the FIDE International Master (IM) title in 1974, and International Arbiter (IA) title in 1982.