Gwilym Meirion Jenkins (12 August 1932 – 10 July 1982) was a Welsh statistician and systems engineer, born in Gowerton (Welsh: Tregŵyr), Swansea, Wales. He is most notable for his pioneering work with George Box on autoregressive moving average models, also called Box–Jenkins models, in time-series analysis.He earned a first class honours degree in Mathematics in 1953 followed by a Ph.D. at University College London in 1956.