Chelmsford is a constituency in Essex[n 1] represented in the House of Commons of the UK Parliament since 2024 by Marie Goldman of the Liberal Democrats.

[3] It continued in existence, gradually being reduced in geographic size as additional seats were created in Essex, until it was briefly abolished for the 1997 general election following the Fourth Periodic Review of Westminster Constituencies and replaced by parts of two new constituencies: Maldon and East Chelmsford and West Chelmsford.

Labour polled 11%, despite having been only around 100 votes behind the Liberal Democrats in West Chelmsford in 2005, and even taking second place in 2001.

The south-western corner, including Upminster, was transferred to Romford and southernmost parts, including the town of Billericay, to the South-Eastern Division.Minor changes following the reorganisation of local authorities, involving the abolition of the Rural District of Billericay and the expansion of the Urban District of Brentwood.

[11] The revised constituency is made up of 78.9% by area and 95.1% by population of the previous (2010-2024) version of the seat, the remaining part going to Maldon.

The political parties had been making preparations for an election to take place from 1939 and by the end of this year, the following candidates had been selected; Craig, F. W. S. (1983).