Anthony Gelling (born 18 October 1990) is a Cook Islands international rugby league footballer who plays as a centre, winger and second-row forward.

He has previously played for the Wigan Warriors in the Super League, the New Zealand Warriors in the National Rugby League, the Widnes Vikings in the Championship, and the Warrington Wolves and the Leigh Centurions in the Super League.

Gelling was born in Auckland, New Zealand and is of Cook Island ancestry.

Gelling was a Howick Hornets junior.

In 2009 and 2010 Gelling played for Sydney Roosters in the Toyota Cup. In September 2010 he was sacked by Roosters along with teammate Samuel Brunton.

In 2011 Gelling returned to New Zealand, joining Auckland Vulcans and his old club, Howick Hornets. Hornets won the 2011 Fox Memorial competition that year. He was named in the Counties Manukau Stingrays side in the 2011 National Competition.

At the end of the 2011 season, Gelling signed a contract to play for Wigan Warriors in the Super League.

Gelling was allocated the number 24 jersey on arrival to Wigan Warriors' pre-2012 season training in Florida.