| William Whetton | |
| Birth Name: | William Whetton |
| Birth Date: | 10 June 1989 |
| Height: | 1.93m (06.33feet) |
| Weight: | 113kg (249lb) |
| Position: | Number 8 |
| Provinceyears1: | 2010–2011 |
| Provinceyears2: | 2012–2014 |
| Province1: | North Harbour |
| Province2: | Northland |
| Provinceapps1: | 0 |
| Provinceapps2: | 10 |
| Provincepoints1: | 0 |
| Provincepoints2: | 0 |
| Clubs1: | Castres |
| Clubs3: | Albi |
| Apps1: | 7 |
| Apps2: | 18 |
| Apps3: | 68 |
| Points1: | 0 |
| Points2: | 5 |
| Points3: | 45 |
| Years1: | 2014-2015 |
| Years2: | 2015-17 |
| Years3: | 2017- |
| Ru Clubupdate: | 5 December 2019 |
William Whetton is a New Zealand rugby union player. He currently plays at number 8 for Castres in the Top 14.[1] He is the son of ex-All Black lock Gary Whetton and his brother Jack is also a professional rugby player.[2]