|Full name||James Hay|
|Date of birth||9 February 1881|
|Place of birth||Woodside[disambiguation needed], Ayrshire, Scotland|
|Date of death||4 April 1940(aged 59)|
|Playing position||Half back|
|1909–1911||Scottish League XI||6||(0)|
|* Senior club appearances and goals counted for the domestic league only.
† Appearances (Goals).
Hay was born in Woodside[disambiguation needed], Ayrshire and signed for Celtic for £50 from Ayr in March 1903. Described as a strong tackler, Hay captained Celtic between 1906 and 1911 and made a total of 322 appearances for the club, scoring 23 goals. He was part of the Celtic side which won six consecutive league titles between season 1904-05 and season 1909-10 under the management of Willie Maley.
He left Celtic in 1911 after the club failed to meet his improved contract demands and joined English club Newcastle United. He returned to Scotland in 1915 with Ayr United where he remained for three years.
He later had a spell in management at former club Ayr United where he was appointed in June 1924. The club were relegated from the First Division in his first season as manager. He left the club in January 1926 after accusing Ayr United director Tom Steen of trying to bribe a referee. Hay was banned indefinitely by the Scottish Football Association after he refused to apologise, but the suspension was lifted in November 1927 and later had a career as an insurance agent until his death on 4 April 1940.
Roy Hay, James 'Dun" Hay, 1881-1940: the Story of a Footballer, Sports and Editorial Services Australia, Teesdale, Victoria, Australia, 2004.