| Election Name: | Otaki by-election of 1900 |
| Country: | New Zealand |
| Flag Year: | 1900 |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1899 New Zealand general election |
| Previous Year: | 1899 general |
| Next Election: | 1902 New Zealand general election |
| Next Year: | 1902 general |
| Election Date: | 6 January 1900 |
| Turnout: | 62.35% |
| Candidate1: | William Hughes Field |
| Party1: | New Zealand Liberal Party |
| Popular Vote1: | 1,755 |
| Percentage1: | 52.44 |
| Candidate2: | Charles Morison |
| Party2: | Conservative (New Zealand) |
| Popular Vote2: | 1,592 |
| Percentage2: | 47.56 |
| Member | |
| Before Election: | Henry Augustus Field |
| After Election: | William Hughes Field |
| Before Party: | New Zealand Liberal Party |
| After Party: | New Zealand Liberal Party |
The Otaki by-election of 1900 was a by-election during the 14th New Zealand Parliament. The election was held on 6 January following the death of Henry Augustus Field, and was won by his brother William Hughes Field.
The electorate became vacant following the death on 8 December of Henry Augustus Field, two days after the . Before candidates had announced themselves, it was reported that Kennedy Macdonald was considering standing for the Liberal Party.[1] The barrister Edwin George Jellicoe was also mentioned as a possible candidate.[2] It was reported that it was likely that the brother of the deceased, William Hughes Field, would be asked to stand for the Liberal Party. The president of the Eighty Club, T. Dwan, was mentioned as a possible candidate for the opposition. The barrister Charles Morison, who had contested the 1899 general election, was a likely candidate again.[3] [4] William Field consented just after his brother's funeral, and the Liberal Party confirmed that had Field not been their candidate, they would have stood W. Ross of Upper Hutt as their candidate.
The deadline for nomination of candidates was 30 December 1899.[5] In the end, only two candidates were nominated: William Field for the Liberal Party, and Charles Morison in the interests of the opposition.[6]
The by-election was held on 6 January and was won by Field's brother William, who during the campaign showed that he was inexperienced in politics.[7]
The following table gives the election results: