Llewelyn Wyn Griffith CBE (30 August 1890 – 27 September 1977) was a Welsh novelist, born in Llandrillo yn Rhos, Clwyd.
[1] A captain in the 15th Royal Welch Fusiliers, part of the 38th (Welsh) Division during the First World War, he is known for his memoir, Up to Mametz, which he wrote in the early 1920s, although the work was not published until 1931.
Griffith was a career civil servant, and rose to a senior post in the Inland Revenue.
After retirement from the Inland Revenue he served as vice chairman of the Arts Council of Great Britain.
A continuation of his World War memoir, based on research into Griffith's papers, was published in 2010.