The Horowhenua-Kapiti Rugby Football Union is the governing body for rugby union in the Horowhenua and Kāpiti Coast districts in the Manawatū-Whanganui and Wellington regions. The union was established in 1893 as the Horowhenua Rugby Football Union and was changed to its current name of Horowhenua-Kapiti in 1997, in order to reflect the full extent of the union's districts.

Horowhenua-Kapiti currently compete in the Heartland Championship, an annual competition organised by the New Zealand Rugby Union for New Zealand's amateur unions. The team play out of Levin Domain in Horowhenua. Previously, Horowhenua-Kapiti competed in the lower divisions of the National Provincial Championship. The union won the National Provincial Championship (NPC) Third Division in 1993. In 2018 the union won their second major honour to date, winning the 2018 Lochore Cup Final against Wairarapa Bush 26–23. 2018 was also the union's 125th anniversary, 25 years after their previous title in their centenary year in 1993.

Ranfurly Shield History

Horowhenua-Kapiti have never held the Ranfurly Shield but had two successful challenges in 1927 when the union was amalgamated with Manawatu as Manawhenua. In 2007 Horowhenua-Kapiti recently had a challenge against North Harbour, but were outclassed throughout the match, losing 99–6.^[5] Their following matches would come in 2013 when they suffered an 85–0 loss against Waikato and in 2015 when they lost to Hawke's Bay by a margin of 50–16.

	18 July 2013	Waikato	85–0	Horowhenua-Kapiti	Campbell Park, Morrinsville
	18:00 (NZST)	Try: Whetu Douglas  2' Joe Webber (4) Brendon Leonard Dylan Collier (2) Romana Graham Brian Alainu'uese Glen Robertson (2) Hame Faiva Con: Trent Renata (6) Wharenui Hawera (1) Dylan Collier (1)	Report		Attendance: 3,000

	16 July 2015	Hawke's Bay	50–16	Horowhenua-Kapiti	McLean Park, Napier
	19:35 (NZST)	Try: Joseph Penitito (2) Tony Lamborn Shannan Chase Tom Stanley Mark Braidwood Con: Tyrone Elkington-MacDonald (4) Pen: Tyrone Elkington-MacDonald (4)	Report	Try: Sam Gardner Con: Perry Hayman (1/1) Pen: Perry Hayman (3)	Referee: Paul Williams

In addition to the Heartland Championship side, the union fields a number of age-grade and women's representative teams, including a High-Performance Unit for local club and school players.^[6]

The union currently has nine member clubs, listed below. Foxton is the oldest club in the union, having been established in 1880, however it was not a permanent affiliate of the union until 1911.^[8]

• Athletic RFC
• College Old Boys RFC
• Foxton RFC
• Levin Wanderers RFC
• Paraparaumu RFC
• Rahui RFC
• Shannon RFC
• Toa RFC
• Waikanae RFC

There have only been 2 players selected for the All Blacks whilst playing for Horowhenua-Kapiti: H. Jacob and J.F Karam. However, Carlos Spencer played for the union between 1992 and 1993 before moving to Auckland, and Christian Cullen played for the union in 1994 before moving to Manawatu. Dane Coles and Codie Taylor played their junior rugby in Horowhenua Kapiti making the age grade teams, while Codie Taylor also represented the Horowhenua Kapiti sevens team.