| Election Name: | 2004 Te Tai Hauauru by-election |
| Country: | New Zealand |
| Flag Year: | 2004 |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 2002 New Zealand general election |
| Previous Year: | 2002 general |
| Next Election: | 2005 New Zealand general election |
| Next Year: | 2005 general |
| Turnout: | 7,861 |
| Candidate1: | Tariana Turia |
| Party1: | Māori Party |
| Popular Vote1: | 7,256 |
| Percentage1: | 92.74% |
| Member | |
| Before Election: | Tariana Turia |
| After Election: | Tariana Turia |
| Before Party: | New Zealand Labour Party |
| After Party: | Māori Party |
The Te Tai Hauauru by-election was a by-election in the New Zealand electorate of Te Tai Hauāuru, one of the Māori electorates. The date set for the by-election was 10 July 2004. It saw the re-election of Tariana Turia, a former MP for the Labour Party and now co-leader of the Māori Party.
Turia had quit both Parliament and the Labour Party in protest over the government's position in the foreshore and seabed controversy. She contested the by-election as a member of the new Māori Party, which she played a leading role in establishing. None of the major parties contested the by-election, and Turia was always the overwhelming favourite to win. Perhaps due to the apparent inevitability of a win for Turia, only around 32% of Te Tai Hauauru voters cast ballots.
Nominations for the by-election closed on 15 June 2004. Candidates were:
If no candidates had been put forward to oppose Turia, she would have been declared the winner without a vote – this initially appeared possible, and given the cost of a by-election (estimated at almost NZ$500,000), many hoped that a vote could be avoided.
The holding of a by-election was criticised by a number other parties. The Labour Party, of which Turia was originally a member (and which has traditionally dominated the Māori electorates) has called the by-election "a waste of time and money", and a "sideshow" although the by-election was required by Labour-supported waka-jumping law in force at the time.[1] Labour nominated Errol Mason to contest the seat at the subsequent 2005 general election, losing to Turia.