Bridgnorth was a parliamentary borough in Shropshire which was represented in the House of Commons of England from 1295 until 1707, then in the House of Commons of Great Britain until 1800, and in the House of Commons of the Parliament of the United Kingdom from 1801 until its abolition in 1885.
It was represented by two burgesses until 1868, when it was reduced to one Member of Parliament (MP).
According to the 1881 census, the borough of Bridgnorth comprised the parishes of Quatford, part of Quatt, St. Leonard and St Mary (in Bridgnorth town), Astley Abbotts, Eardingdon, Oldbury, Romsley and Tasley. This was smaller than the municipal borough, which only contained the first four.
By the eighteenth century Bridgnorth had one of the widest franchises in England, consisting of "the burgesses and freement within and without the borough". There were more than a thousand voters in the contested elections of 1727, 1734 and 1741 although in 1920 it was noted as 700. Between 1661 and 1870 at least one of the MPs for Bridgnorth came from the Whitmore family.
Hanbury-Tracy resigned, by accepting the office of Steward of the Chiltern Hundreds, after a petition was lodged against his election.
Pigot's election was declared void on petition due to bribery, causing a by-election.
Whitmore was appointed a Lord Commissioner of the Treasury, requiring a by-election.
On 22 March 1866, after scrutiny, Dalberg-Acton was unseated and Whitmore was duly elected in his place.
Whitmore was then appointed a Lord Commissioner of the Treasury, requiring a by-election.
The seat was reduced to one member for the 1868 election.
Whitmore resigned, causing a by-election.