Regan Matthew King (born 2 October 1980) is a New Zealand rugby union player who plays as a centre.

He currently plays for Mid Canterbury in the Heartland Championship and Neath RFC in the Welsh Premier Division.

After playing for Waikato and the Chiefs, he made his first and only Test appearance on 23 November 2002 against Wales at the Millennium Stadium in Cardiff.

Following this, King suffered several injuries hindering the progress of his career in New Zealand and taking him out of the NPC and Super 12.

[4] King returned to New Zealand in 2017 and joined the Mid Canterbury club side Southern, helping them to win the Watters Cup competition final on 23 July at Mayfield.