Carmarthenshire East (UK Parliament constituency)

East Carmarthenshire
Former County constituency for the House of Commons
Carmathenshire boundaries 1885-1918
1885–1918
Number of members	one
Created from	Carmarthenshire

East Carmarthenshire was a county constituency in Carmarthenshire, Wales. It returned one Member of Parliament to the House of Commons of the Parliament of the United Kingdom, elected by the first past the post voting system.

It was created for the 1885 general election, when the old two-member Carmarthenshire constituency was divided into two new single-member seats: East Carmarthenshire and West Carmarthenshire, both of which were in turn abolished for the 1918 general election.

The constituency included parts of the Sessional Divisions of Llandeilo and Llandovery and the Sessional Division of Llanelly.

Both sitting members for the former Carmarthenshire constituency chose to contest the West Carmarthesnhire division, which created an opportunity for a new Liberal candidate in the new Eastern division. It was anticipated that it would produce a strong Liberal vote, primarily in the emerging industrial communities which emerged as a result of the development off the anthracite coal and tinplate industries. The increase in the electorate in these communities was striking. For example, the number of voters in that part of the parish of Llanelli that was outside the borough constituency rose from 615 to 1,500, Similarly, the electorate in Pembrey increased from 377 to 1,000, in Hendy from 190 to 620, in Brynamman from 175 to 450, and in Cwmamman from 164 to 550.