Fendalton is a former New Zealand parliamentary electorate. It existed during two periods between 1946 and 1996. The electorate was in the western suburbs of Christchurch, New Zealand. Fendalton is an expensive suburb, and was always represented by the National Party.
The 1941 census had been postponed due to World War II, so the 1946 electoral redistribution had to take ten years of population growth and movements into account. The North Island gained a further two electorates from the South Island due to faster population growth. The abolition of the country quota through the Electoral Amendment Act, 1945 reduced the number and increased the size of rural electorates. None of the existing electorates remained unchanged, 27 electorates were abolished, eight former electorates were re-established, and 19 electorates were created for the first time, including Fendalton. To the west of the Main North Line, its area came from the Riccarton electorate. To the east of the Main North Line, the electorate's area had previously belonged to the Christchurch North and Christchurch South electorates.
In the 1952 electoral redistribution, the Fendalton electorate expanded to the north and north-west, gaining area from the Selwyn electorate, and lost some area in the southern part of the central city. In the 1957 electoral redistribution, the boundaries were adjusted significantly. The southern part of the Fendalton electorate was lost to the Christchurch Central electorate. In the southwest, large areas were transferred to the Riccarton electorate. In the north-west, the electorate was extended as far as Harewood. In the north-east, Papanui was gained from the St Albans electorate. In the 1962 electoral redistribution, some boundary adjustments were carried out in the Papanui area.