William Arthur Hay (6 December 1873 – 16 June 1945) was an Australian Methodist minister. He was also a cricketer, who played two first-class matches for Otago in New Zealand in the 1917–18 season, taking 18 wickets.
| Format | Matches | Runs | Avg | 100s/50s | Top Score | Wickets | Bowl Avg | Best Bowling | Catches/St |
| First-class | 2 | 17 | 8.50 | 0/0 | 13 | 18 | 10.66 | 8/70 | 1/– |
