In its first fifty years, Brightside returned a variety of Liberal, Conservative and Labour MPs.

However, from 1945 onwards, it became one of the Labour Party's safest seats in the United Kingdom.

1950–1955: The County Borough of Sheffield wards of Brightside, Firth Park, and Tinsley.

[1] 1955–1983: The County Borough of Sheffield wards of Brightside, Firth Park, Nether Shire, and Southey Green.

[2] 1983–2010: The City of Sheffield wards of Brightside, Firth Park, Nether Shire, Owlerton, and Southey Green.