Leonel Suárez Fajardo is a decathlete from Cuba. He was bronze medalist in the event at the 2012 Summer Olympics, 2008 Summer Olympics and silver medalist at the 2009 World Championships. He won a third consecutive global medal at the 2011 World Championships in Athletics, taking bronze.

The decathlon is a combined event in athletics consisting of 10 track and field events. The word "decathlon" was formed, in analogy to the word "pentathlon", from Greek δέκα and ἄθλος. Events are held over two consecutive days and the winners are determined by the combined performance in all. Performance is judged on a points system in each event, not by the position achieved. The decathlon is contested mainly by male athletes, while female athletes typically compete in the heptathlon.