Poplar South (UK Parliament constituency)

South Poplar
Former Borough constituency for the House of Commons
Poplar South in the County of London
1918–1950
Number of members	one
Replaced by	Poplar
Created from	Poplar

Poplar South (strictly South Poplar, although this is an unusual form of official name for a borough constituency) was a parliamentary constituency centred on the Poplar district of the East End of London. It returned one Member of Parliament to the House of Commons of the Parliament of the United Kingdom.

The constituency was created for the 1918 general election, and abolished for the 1950 general election. It was then largely replaced by a new Poplar constituency.

The Metropolitan Borough of Poplar wards of Bromley Central, Bromley South East, Poplar Cubitt Town, Poplar East, Poplar Millwall, Poplar North West, and Poplar West.