Thomas Griffiths (1867–1955) was a Welsh trade union official and Labour Party politician, he was a member of parliament for Pontypool from 1918 to 1935.

[1] Griffiths was born in 1867 in Neath, Wales and was educated at the Melyn Voluntary School.

[1] In 1899 at the age of 32 Griffiths became a student at the newly opened Ruskin College in Oxford, England.

[1] He was appointed a Divisional Officer of Iron and Steel Trades Confederation and in the 1918 General Election he became the member of parliament for Neath.

[1] He married Mary Elizabeth Morgan in 1891 and they had a son and a daughter, he died aged 87 in Oxford, England on 4 February 1955.