2005 National Provincial Championship

The 2005 season was the 30th and final year of the National Provincial Championship (NPC), a provincial rugby union competition in New Zealand, in its original format. Auckland were the winners of Division 1, Hawke's Bay were the winners of Division 2, and Wairarapa Bush were the winners of Division 3.

Round 1
Bye: Marlborough

Round 2
Bye: East Coast

Round 3
Bye: Wanganui

Round 4
Bye: Poverty Bay

Round 5
Bye: Nelson Bays

Round 6
Bye: Manawatu

Round 7
Bye: Counties Manukau

Round 8
Bye: North Otago

Round 9
Bye: Hawke's Bay