William Edward Hadley (11 March 1910 – 30 September 1992) was a New Zealand rugby union player.

A hooker, Hadley represented Bay of Plenty and Auckland at a provincial level, and was a member of the New Zealand national side, the All Blacks, from 1934 to 1936.

[1] He was selected by the editors of the 1935 Rugby Almanac of New Zealand as one of their 5 players of the year in 1934.

[2][3] Hadley died in Auckland on 30 September 1992, and his ashes were buried at North Shore Memorial Park.

This biographical article relating to New Zealand rugby union, about a person born in the 1910s, is a stub.