Caleb "Kay" Olliff (9 February 1883 – 21 May 1961) was a New Zealand cricketer who played first-class cricket for Auckland from 1903 to 1913 and represented New Zealand in the days before New Zealand played Test cricket. In a Plunket Shield match in 1913 he took a hat-trick and at one stage took nine wickets for three runs.
| Format | Matches | Runs | Avg | 100s/50s | Top Score | Wickets | Bowl Avg | Best Bowling | Catches/St |
| First-class | 20 | 411 | 14.17 | 0/1 | 52 | 90 | 18.50 | 7/42 | 7/– |
