Ian Douglas Foster CNZM (born 1 May 1965) is a New Zealand professional rugby union coach and former player.

In 2002, Waikato finished first after the round robin stage with eight wins from nine games, but ultimately lost the final to Auckland 28-40.

In December 2019, Foster was named the new head coach of the All Blacks, replacing Hansen,[10] alongside assistants John Plumtree, Greg Feek, and Scott McLeod.

The All Blacks bounced back with a comprehensive victory at Ellis Park against South Africa,[16] which might have saved Foster's job.

[17] After a review, and support from many of the All Blacks squad,[18] New Zealand Rugby opted to back Foster until the 2023 World Cup.