Sir David Martyn Evans-Bevan (4 March 1902 – 9 September 1973) was a wealthy industrialist from south Wales.
He was the owner of the Vale of Neath Brewery, and purchased Margam Castle from the Talbot family.
David Evans-Bevan inherited the Vale of Neath Brewery from his father, Evan Evans-Bevan.
David married Eira Winifred Glanley, daughter of Sidney Archibald Lloyd Glanley, in 1929.
In 1942 he acquired the Margam estate.David Evans-Bevan bought two Spitfires to help the war effort, and was known for his help towards the council.
On 9 July 1958 Evans-Bevan was created a baronet, of Cadoxton-juxta-Neath in the County of Glamorgan.In 1967, Sir David sold the brewery to Whitbread, and it finally closed in 1972.David Evans-Bevan died in September 1973, aged 71, and was succeeded in the baronetcy by his son Martyn.