Redelén Melo dos Santos (born 24 April 1976 in São Paulo) is a Brazilian former track and field athlete who specialised in the 110 metres hurdles.
His personal best of 13.29 seconds for the event is the South American record.
He is a two-time South American Champion in the hurdles (2003 and 2005) and also won a silver medal in 2001.
He represented Brazil twice at both the World Championships in Athletics and the IAAF World Indoor Championships.
He missed the 2004 Athens Olympics due to injury.
In other competitions, he was fourth at the 2003 Pan American Games and won two silver medals at the Ibero-American Championships in Athletics.
His time of 6.57 seconds for the seldom-held 50 metres hurdles is also a continental record mark.