Coldharbour was an electoral ward in the London Borough of Lambeth from 2002 to 2022.

It covered parts of Brixton and Loughborough Junction.

It returned three councillors to Lambeth London Borough Council.

The ward was replaced in 2022 by Brixton Acre Lane, Brixton North, Brixton Rush Common, Brixton Windrush and Herne Hill and Loughborough Junction.

The by-election took place on 13 September 2018, following the death of Matthew Parr.