Tarian y Gweithiwr (The Worker's Shield) was a weekly Welsh-language newspaper published in Aberdare between 1875 and 1934, initially by the firm of Mills, Lynch, and Davies.

The paper achieved a peak circulation of around 15,000 copies a week.

[1][2] A supporter of radical principles, Tarian y Gweithiwr emphasised workers' rights in its coverage of political news as well as in opinion pieces, making it popular with the miners and other industrial workers of South Wales.

[1] Welsh Newspapers Online has digitised 1,645 issues of Tariany Y Gweithiwr (1875–1910) from among the newspaper holdings of the National Library of Wales.

Y Darian (1914–1934)