Rathbone Market
Canning Town is a district of the London Borough of Newham, East London, England, north of the Royal Victoria Dock. Its urbanisation was largely due to the creation of the dock. The area was part of the ancient parish and County Borough of West Ham. It forms part of the London E16 postcode district.

Canning Town is a district of the London Borough of Newham, East London, England, north of the Royal Victoria Dock. Its urbanisation was largely due to the creation of the dock. The area was part of the ancient parish and County Borough of West Ham. It forms part of the London E16 postcode district.
Check the official site before travelling; hours and prices can change.
More markets

Borough Market
London's defining food market — go early Saturday, eat your way around the perimeter.

Columbia Road Flower Market
Sunday-only flower market in the East End — 8 a.m. for choice, 2 p.m. for prices.

Maltby Street Market
Borough's smaller, scruffier sibling — railway arches, weekend only.
Source: wiki-list