Hernando Arrechea Serrano (12 December 1943 – 22 June 2009) was a Colombian hurdler who competed in the 1967 Pan Am Games and the 1968 Summer Olympics.

International competitions Representing 1963South American ChampionshipsCali, Colombia9th (h)110 m hurdles15.71965South American ChampionshipsRio de Janeiro, Brazil3rd110 m hurdles15.7Bolivarian GamesQuito, Ecuador4th100 m10.7 A1st110 m hurdles14.5 A1966Central American and Caribbean GamesSan Juan, Puerto Rico1st110 m hurdles14.2 (w)6th4 × 100 m relay41.31967Pan American GamesWinnipeg, Canada12th (h)100 m10.785th110 m hurdles14.763rd4 × 100 m relay39.921968Olympic GamesMexico City, Mexico17th (h)110 m hurdles14.09

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