Oleksandr Klyuchko (Ukrainian: Олександр Ключко) (born July 11, 1984 in Mykolaiv) is an amateur boxer from Ukraine who won a bronze medal in the lightweight division at the 2006 European Amateur Boxing Championships.

At the European Championships he won against Domenico Valentino 30:18 and future world champion Frankie Gavin 42:26, but lost to Olympic champion Alexey Tishchenko 29:42 and took bronze.

At the World Championships 2007 he defeated Asian champion Hu Qing 26:13 but lost against by Colombian Darley Perez 10:13.

At the 2010 European Amateur Boxing Championships at Moscow, Russia he won the bronze medal.

This biographical article related to a Ukrainian boxer is a stub.