Dulwich was a borough constituency in the Dulwich area of South London, which returned one Member of Parliament (MP) to the House of Commons of the Parliament of the United Kingdom.

The constituency was created by the Redistribution of Seats Act 1885 for the 1885 general election. The constituency was abolished by the Boundary Commission in 1997, when most of its former territory became part of the Dulwich and West Norwood constituency.

The constituency of Dulwich was created by the Redistribution of Seats Act 1885, as one of nine covering the enlarged parliamentary former borough of Lambeth. Lambeth councillors had been overwhelmingly progressive Liberals though this part of the seat did have Conservative parish/urban district councillors before 1885.^[1] Dulwich was one of three seats in the new parliamentary borough of Camberwell.

As a suburban London constituency, Dulwich tended to favour the Conservatives, and returned a Conservative member in each election between 1885 and 1945, when it fell to the Labour party. After that it became a marginal seat, with Labour winning slightly more times than the Conservatives. In 1892 the Liberal candidate estimated that it had around 4,000 working class voters out of around 10,500 and observed that although it had a reputation as a 'villa constituency' there were many voters in the many less impressive houses.^[2]

The constituency shared boundaries with the Dulwich electoral division for election of councillors to the Greater London Council at elections in 1973, 1977 and 1981. Gerald Bowden held the seat from 1977 to 1981.

1885–1918: The wards of Camberwell and Dulwich, and the hamlet of Penge.^[3]

1918–1950: The Metropolitan Borough of Camberwell wards of Alleyn, College, Hamlet, Ruskin, and St John's. Penge was transferred to the new Bromley constituency.

1950–1974: The Metropolitan Borough of Camberwell wards of Alleyn, College, Hamlet, Lyndhurst, Nunhead, Ruskin, Rye, Rye Lane, and St John's.

1974–1997: The London Borough of Southwark wards of Alleyn, Bellenden, College, Lyndhurst, Ruskin, Rye, The Lane, and Waverley.^[4][5]

• 1887 Dulwich by-election
• 1903 Dulwich by-election
• 1906 Dulwich by-election
• 1932 Dulwich by-election
• Southwark local elections