Kirsten Louise Hellier ONZM (née Smith; born 6 October 1969 in Tokoroa) is a former javelin thrower, who represented New Zealand at the Commonwealth and the Olympic Games.

Hellier was the coach of World Champion shot putter Valerie Adams from 1998 until 2010.

[2] From age five to eleven, her family lived in Samoa where her father was a construction worker.

[6] In the 2018 Queen's Birthday Honours, Hellier was appointed an Officer of the New Zealand Order of Merit, for services to sport, particularly athletics.

[8] An interview with Hellier was featured in the 2022 documentary film Dame Valerie Adams: More than Gold.