Juan Antonio Leiva Irigoyen (17 July 1932 – 16 June 1983) was a Venezuelan sprinter. He competed in the men's 100 metres at the 1952 Summer Olympics.

International competitions Representing 1951Pan American GamesBuenos Aires, Argentina15th (h)100 m11.310th (sf)200 m22.711th (h)110 m hurdles16.0Bolivarian GamesCaracas, Venezuela2nd4 × 400 m relay3:23.11952Olympic GamesHelsinki, Finland47th (h)100 m11.3133rd (h)200 m22.381954Central American and Caribbean GamesMexico City, Mexico5th110 m hurdles15.22nd400 m hurdles53.985th4 × 400 m relay3:20.2South American ChampionshipsSão Paulo, Brazil11th (sf)200 m22.73rd110 m hurdles14.8 (w)3rd4 × 100 m relay42.23rd4 × 400 m relay3:21.01955Pan American GamesMexico City, Mexico5th400 m hurdles54.72nd4 × 100 m relay41.363rd4 × 400 m relay3:15.931959Central American and Caribbean GamesCaracas, Venezuela4th (h)400 m hurdlesNT

Personal bests 100 metres – 10.6 (1953)

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