The 1861 Wanganui by-election was a by-election held on 5 July 1861 in the Wanganui electorate during the 3rd New Zealand Parliament.
The by-election was caused by the resignation of the incumbent, Henry Shafto Harrison, as he was a sheriff of the district.
[1] He was declared elected unopposed, as he was the only candidate nominated.
He was not a supporter of the Fox Party so could mean the lack of support rather than a majority of one for William Fox.
This New Zealand election-related article is a stub.