Josh Mantellato (born 21 April 1987) is a former Italy international rugby league footballer who most recently played on the wing for The Entrance Tigers in the Denton Engineering Cup.

In 2012, Mantellato joined the Newcastle Knights' NSW Cup team, finishing the season as the competition's highest point-scorer, with 306 points.

[14] On 11 August 2014, Mantellato signed a three-year contract with Super League club, Hull Kingston Rovers, starting in 2015.

In January, Mantellato returned to Australia to play for Sydney Roosters feeder club, Wyong Roos on a one-year contract following the relegation of Hull Kingston Rovers to the Kingstone Press Championship.

At the end of the season it was announced that Wyong would not be competing in the competition in 2019 as the Sydney Roosters ended their agreement for Wyong to be their feeder side instead choosing foundation club North Sydney as the new feeder side.