Phillips Olaosebikan Idowu, is a British athlete who specialised in the triple jump and was active at elite level between 2000 and 2014. He is a former World Outdoor and Indoor, European Outdoor and Indoor, and Commonwealth triple jump champion. He was also a silver medalist at the 2008 Summer Olympics. Idowu is a member of the London-based Belgrave Harriers athletics club and has been for much of his career.

The triple jump, sometimes referred to as the hop, step and jump or the hop, skip and jump, is a track and field event, similar to long jump. As a group, the two events are referred to as the "horizontal jumps". The competitor runs down the track and performs a hop, a bound and then a jump into the sand pit. The triple jump was inspired by the ancient Olympic Games and has been a modern Olympics event since the Games' inception in 1896.