William Charles Aroyn Walker (born 19 May 1978) is a former New Zealand rugby union footballer.
[1] Walker is currently the head coach of the Blues Women in the Super Rugby Aupiki competition.
[4] Walker joined Gloucester for the start of the 2006/07 season on a 2-year contract from World Fighting Bull.
On 13 September 2008, Walker played a key role in Gloucester's victory at The Rec.
Walker was appointed as Head Coach of Auckland Storm for the 2021 Farah Palmer Cup season.