Merthyr Tydfil and Rhymney (UK Parliament constituency)

1983–1997: The Borough of Merthyr Tydfil, and the District of Rhymney Valley wards Nos. 5 and 14 to 20. 1997–2010: The County Borough of Merthyr Tydfil, and the Caerphilly County Borough wards of Abertysswg, Darren Valley, Moriah, New Tredegar, Pontlottyn, Tir-Phil, and Twyn Carno. 2010–2024: The Merthyr Tydfil County Borough electoral divisions of Bedlinog, Cyfarthfa, Dowlais, Gurnos, Merthyr Vale, Park, Penydarren, Plymouth, Town, Treharris, and Vaynor, and the Caerphilly County Borough electoral divisions of Darran Valley, Moriah, New Tredegar, Pontlottyn, and Twyn Carno. As its name suggests, the main towns were Merthyr Tydfil and Rhymney. Aberfan was also located in the constituency. The seat was bordered by the constituencies of Blaenau Gwent, Brecon and Radnorshire, Caerphilly, Cynon Valley, and Islwyn. ==History==

The constituency was created for the 1983 general election. Prior to this, Merthyr Tydfil had been in its own eponymous constituency, and Rhymney was in the seat of Ebbw Vale (at the time Michael Foot's constituency), which was abolished at that election. ==Members of Parliament==

Elections in the 1980s Elections in the 1990s Elections in the 2000s Elections in the 2010s Of the 80 rejected ballots: • 22 were either unmarked or it was uncertain who the vote was for. • 57 voted for more than one candidate. • 1 had writing or mark by which the voter could be identified. Of the 95 rejected ballots: • 49 were either unmarked or it was uncertain who the vote was for. • 46 voted for more than one candidate. Of the 71 rejected ballots: • 41 were either unmarked or it was uncertain who the vote was for. • 30 voted for more than one candidate. Of the 83 rejected ballots: • 23 voted for more than one candidate. • 4 had writing or mark by which the voter could be identified. • 56 had want of official mark. ==See also==