Nathan Cayless
 Nathan Frederick Cayless (born 28 March 1978 in Sydney New South Wales) is a retired New Zealand-Australian professional rugby league footballer who was a long-time captain for the Parramatta Eels of the National Rugby League. His position of choice was prop forward. He is also a former captain of the New Zealand national team whom he led to World Cup glory against Australia in 2008. He is the older brother of fellow New Zealand international Jason Cayless.