John Adam Day (6 July 1901 – 7 June 1966), was a British Liberal Party parliamentary candidate who later became a prominent Conservative in Devon local government.
He was the son of Herbert Allen Day and Isabella Maud Black.
He was a Flight Lieutenant and Deputy Assistant Provost Marshal in charge of Cornwall.
[4] He was Liberal candidate for the Bury St Edmunds Division of Suffolk at the 1924 General Election.
He served as Vice-Chairman of the Devon County Council Education Committee 1947–55.