Bow and Bromley was a constituency in the Parliament of the United Kingdom. Located in the Metropolitan Borough of Poplar in London, it was created by the Redistribution of Seats Act for the 1885 general election and returned one Member of Parliament (MP) until it was abolished for the 1950 general election.

Poplar was a local government district in the metropolitan area of London, England. It was formed as a district of the Metropolis in 1855 and became a metropolitan borough in the County of London in 1900. It comprised Poplar, Millwall, Bromley-by-Bow and Bow as well as Old Ford, Fish Island and Cubitt Town.