Coldharbour ward was an administrative division of the London Borough of Lambeth from 2002 to 2022. It is located in Brixton. The ward was replaced in 2022 by Brixton Acre Lane, Brixton Rush Common, Brixton Windrush, Herne Hill and Loughborough Junction, and Brixton North.

Coldharbour has a large population compared to other wards (17,200). It has a young age profile, with a high proportion of children aged 0–15.

It is also the poorest ward in the borough. It has the highest proportion of people from ethnic minorities, and a high proportion of people not born in UK. 4.8% of Coldharbour residents speak an African language as their first language, and 4% speak Portuguese.

Coldharbour has the highest proportion of Black Caribbean residents, and the highest proportion of Black African residents. Less than a quarter of residents are White British.^[1]

Much of the ward takes in less affluent estates, such as the Loughborough, Hertford, Angell Town and Moorlands Estates. There is also a pocket of considerable affluence in the far south of the ward.

The 1981 Brixton riot, the most serious riot in the United Kingdom during the 20th century, started in the ward. The George public house was burnt down and a number of other buildings were damaged along Railton Road.

• AJ Tracey, rapper and musician
• Levi Roots, rapper, musician and entrepreneur
• John Major, former Prime Minister of the United Kingdom, who lived along Coldharbour Lane^[10]
• C. L. R. James, the writer and black political activist, lived in Railton Road,^[11] above the offices of Race Today.^[12]
• Big Narstie, rapper and musician
• La Roux (Elly Jackson), musician, born and raised in Brixton