| Election Name: | 1906 Manukau by-election |
| Country: | New Zealand |
| Flag Year: | 1906 |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1905 New Zealand general election |
| Previous Year: | 1905 general |
| Next Election: | 1908 New Zealand general election |
| Next Year: | 1908 general |
| Turnout: | 3,780 |
| Candidate1: | Frederic Lang |
| Party1: | Conservative (New Zealand) |
| Popular Vote1: | 2,514 |
| Percentage1: | 66.50 |
| Candidate2: | George Ballard |
| Party2: | New Zealand Liberal Party |
| Popular Vote2: | 1,266 |
| Percentage2: | 33.49 |
| Member | |
| Before Election: | Matthew Kirkbride |
| After Election: | Frederic Lang |
| Before Party: | Conservative (New Zealand) |
| After Party: | Conservative (New Zealand) |
The Manukau by-election was a by-election in the New Zealand electorate of Manukau, a seat in the north of the North Island.
The by-election was held on 6 December 1906, and was precipitated by the death of sitting MP Matthew Kirkbride who had held the seat since the election.[1] The election was won by Frederic Lang who stood as an independent conservative. His sole opponent was George Ballard of the Liberal Party, who contested in the Government's interests.
The following table gives the election results: