| John Ashworth | |
| Birth Name: | John Colin Ashworth |
| Birth Date: | 9 November 1949 |
| Birth Place: | Waikari, New Zealand |
| Ru Position: | Prop |
| Height: | 1.880NaN0 |
| Weight: | 107kg (236lb) |
| Repyears1: | 1977–1985 |
| Repcaps1: | 24 |
| Reppoints1: | 4 |
| Province1: | Canterbury |
| Province2: | Hawke's Bay |
| Provinceyears1: | 1972–1984 |
| Provinceyears2: | 1985 |
| Provinceapps2: | 2 |
| Relatives: | Craig Green (cousin), Brodie Retallick (nephew) |
| School: | Riccarton High School |
John Colin Ashworth (born 9 November 1949)[1] is a New Zealand former rugby union player. A prop, Ashworth represented Canterbury and, briefly, Hawke's Bay at a provincial level, and was a member of the New Zealand national side, the All Blacks, from 1977 to 1985. He played 52 matches for the All Blacks including 24 internationals.[2] He is remembered for stamping on the face of JPR Williams during a match against Bridgend. The wound required 30 stitches.