Dennis William Townhill OBE (29 May 1925 – 18 July 2008) was an English organist and composer.
Born in Lincoln, he was educated at Lincoln School and studied under Dr Gordon Archbold Slater at Lincoln Cathedral.
Townhill composed a set of responses for use at Anglican evensong.
In 1970, Townhill became the driving force of a plan not only to safeguard the future of the Choir School of St Mary’s Cathedral, Edinburgh but to transform it into a new and vibrant entity. In 1972, the school was expanded into a specialist music school on the lines of the Yehudi Menuhin School, with Lord Menuhin becoming patron and referring to it as "my younger sister-school in Scotland".
He was organist and choir master at:
He retired in 1991.