| Lyn Grime | |
| Birth Name: | Lynnette Kay Grime |
| Nationality: | New Zealand |
| Sport: | Track and field |
| Event: | 400 metres hurdles |
| Birth Date: | 10 September 1962 |
| Height: | 174 cm |
| Weight: | 60 kg |
Lynnette Kay Grime (later Lyn Massey and now Lynnette O'Connor; born 10 September 1962) is a New Zealand hurdler.
Grime was born in 1962 in Matamata. She attended Matamata College from 1976 to 1980 where she was coached by Warwick Fenton. From 1979, she was a New Zealand record holder, first in 100 m hurdles junior, and from 1984 in 400 m hurdles senior.[1] She competed in the women's 400 metres hurdles at the 1984 Summer Olympics[2] and is listed as New Zealand Olympian number 440.[3] She competed at the 1991 World Championships in Athletics in Tokyo and came 17th in the 400 m hurdles.
The O'Connors live in Greymouth with their three children, and she works at Cycle Journeys Greymouth.