Christchurch was a parliamentary electorate in Christchurch, New Zealand. It existed three times. Originally it was the Town of Christchurch from 1853 to 1860. From the 1860–1861 election to the 1871 election, it existed as City of Christchurch. It then existed from the 1875–1876 election until the 1881 election. The last period was from the 1890 election to the 1905 election. Since the 1946 election, a similarly named electorate called Christchurch Central has been in existence.
The historic electorate was represented by 21 members of parliament. For some of the time, it was represented by one member at a time. During other periods, it was one of the few three-member electorates in New Zealand.