Bloomsbury is a ward in the London Borough of Camden, in the United Kingdom. It covers much of the historic area of Bloomsbury, and also some of Covent Garden and Fitzrovia.

The ward has existed since the creation of the borough on 1 April 1965 and was first used in the 1964 elections, although its boundaries have evolved significantly over time. Since 1983, the ward has been in the Holborn and St Pancras constituency, having previously been in Holborn and St Pancras South. It elects three councillors to Camden council, currently all held by the Labour Party, with an election every four years. In 2018, the ward had an electorate of 8,318. The Boundary Commission projects the electorate to rise to 8,541 by 2025.

The Bloomsbury ward is one of Camden's most densely populated wards, while also comprising the highest proportion of commercial and institutional uses. Its northern boundary is defined by the major Euston Road.

The ward encompasses much of the historic area of Bloomsbury, including most of its well-preserved surviving Georgian development in the west. This area is dense in land use and population, with a large proportion of institutional and commercial uses reflecting its Central London location. The premises of University College London comprises a large part of this ward, along with its various student housing blocks, while the commercial centre of Tottenham Court Road runs down the centre from north to south.

All of Camden's portion of Fitzrovia also falls within the Bloomsbury ward, leading some to confuse this area with Bloomsbury itself. This area is less densely developed, largely retaining its original Georgian character, with a large proportion of residential uses. The mixed-use commercial and residential centres of Charlotte Street and Goodge Street also fall within this area.

Term	Councillor	Party
1964–1971	Harold Gould		Conservative
1964–1968	William Ridd		Conservative
1964–1971	Sidney Jaque		Conservative
1968–1971	Colin Jaque		Conservative
1971–1974	Jennifer Horne		Labour
1971–1974	Richard Arthur		Labour
1971–1974	Florence Parnell		Labour
1974–1978	John Guy		Labour
1974–1978	William Evans		Labour
1974–1982	John Thane		Labour
1978–1982	Martin McNeill		Labour
1978–1982	David Harris		Conservative
1982–1986	William Trite		Conservative
1982–1986	Andrew Gordon-Saker		Conservative
1982–1986	Brian Rathbone		Conservative
1986–1990	Michael Kirk		Labour
1986–1990	Nicola Kutapan		Labour
1986–1990	William Budd		Labour
1990–1994	Peter Brayshaw		Labour
1990–1994	John Toomey		Labour
1990–1994	Sadashivrao Deshmukh		Labour
1994–1998	Deidre Krymer		Labour
1994–1995	Shelley Burke		Labour
1994–2002	Nirmal Roy		Labour
1995–2002	Pat Callaghan		Labour
1998–2000	Jake Turnbull		Labour
2000–2006	Peter Brayshaw		Labour
2002–2010	Penelope Abraham		Labour
2002–2010	Fazlul Chowdhury		Labour
2006–2010	Rebecca Hossack		Conservative
2010–present	Adam Harrison		Labour
2010–2014	Milena Nuti		Labour
2010–2014	Abdul Quadir		Labour
2014–present	Sabrina Francis		Labour
2014–present	Rishi Madlani		Labour