Ralph Walter Caulton (10 January 1937 – 9 June 2024) was a New Zealand rugby union player.

A wing, Caulton played for the Poneke club and represented Wellington at a provincial level.

[1] Caulton was a member of the New Zealand national side, the All Blacks, from 1959 to 1964.

[2] Later, Caulton was a Marlborough selector in the 1970s, including the period they held the Ranfurly Shield after winning it from Canterbury.

This biographical article relating to New Zealand rugby union, about a person born in the 1930s, is a stub.