The 2009 New Zealand Warriors season was the 15th in the club's history. They competed in the NRL's 2009 Telstra Premiership and finished 14th (out of 16). The coach of the Warriors was Ivan Cleary while Steve Price was the team's captain. In 2009 Warriors games were broadcast on New Zealand's Sky network averaged 107,163 viewers.

The Warriors used a new jersey design in 2009, produced by Canterbury of New Zealand. Previously Puma AG had supplied the Warriors with apparel. The jerseys were unveiled on 25 February. The Main jersey retained the Black & White colours of the previous jersey, with a reversed scheme for the away jersey. The Warriors used a Blue jersey for the "Heritage round" in Round 10, to represent the Auckland. The Heritage jersey was also worn in Round 12, to celebrate the centenary of the Auckland Rugby League, and in Rounds 24 and 25.

Vodafone New Zealand was again the naming rights sponsor of the Warriors in 2009. Lion Red was the sleeve sponsor. Suzuki and HiFX were featured on the shorts while Loadlift was on the back of the jersey. Other major sponsors included ZM and Flava.

The Warriors used Mt Smart Stadium as their home ground in 2009, their only home ground since they entered the competition in 1995.

* Bulldogs stripped of 2 competition points after an interchange breach in round 2

The Warriors used Twenty Nine players in 2009. Twelve players made their debut for the club, including eight making their National Rugby League debuts.

Warrior Sonny Fai went missing at around 7pm on 4 January 2009, after being caught in a rip current while trying to save some family who had got into difficulty at Te Henga (Bethells Beach), Auckland. His body is yet to be found. The entire team attended his two memorial services, one in a Samoan Methodist Church and one held at Te Henga (Bethells Beach).

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