Splott including Jack Brooks, who served two terms as Leader of South Glamorgan County Council. Since May 2017, the ward has been represented by Welsh Labour Councillors Jane Henshaw, Ed Stubbs, and Huw Thomas. Huw Thomas is also the current Leader of Cardiff Council. In the UK Parliament, Splott is part of the constituency of Cardiff South and Penarth. Its most prominent MP was former Labour Prime Minister James Callaghan. The current MP is Labour's Stephen Doughty, first elected in 2012. In the Welsh Assembly, Splott is part of the constituency of Cardiff South and Penarth, whose current AM is Labour's
Splott medieval times, and a derivation of "plat", meaning a grassy area of land. The name of the original farm would seem to be Middle English "splott", from Old English (speck, blot, patch of land) and the word is to be found in other English place names in the Vale of Glamorgan, Gower, and Pembrokeshire, as well as in Somerset and Devon, in the West Country of England, from where it was presumably introduced by English settlers. It has frequently been noted on lists of unusual place names. The population of Splott in the United Kingdom Census 2001 was 12,074, in