James McCartan (1938 – 14 August 2021) was an Irish Gaelic footballer who played for his local Tullylish club and at senior level for the Down county team from the 1950s until the 1960s.
McCartan played primarily as a forward, and was a major figure in Down's All-Ireland SFC victories of 1960 and 1961.
Once his playing days came to an end he served as manager of Down during the 1980s when the team won the 1982–83 National Football League.
His son, also called James, won All-Ireland SFC medals while playing for Down in 1991 and 1994; Daniel the Second later managed Down, leading the team to the 2010 All-Ireland Senior Football Championship Final, before returning for a second, shorter, spell as manager in 2021.
James the First's younger son Daniel also played for Down, including in the 2010 All-Ireland Senior Football Championship Final.