Nicholas Mark Grist is a Brtish former rally co-driver from Wales, born in Ebbw Vale. His factory team career in the World Rally Championship lasted from 1993 to 2002. He won 21 rallies with more than one driver. Grist's first WRC win was in the Rally Argentina in 1993 with Juha Kankkunen, who at that time was a three times WRC champion. Grist and Kankkunen went on to win the 1993 WRC championship with Toyota. Grist stayed as Kankkunen's co-driver until 1997 when he joined Colin McRae with the 555 Subaru World Rally Team.

Grist remained Colin McRae's co-driver until the Rally New Zealand 2002, during which time the pair won 17 rallies, 27 podium finishes and gained overall 183 WRC points. Between 2002 and 2006, Grist and McRae also competed together in a number of one-off rallies.