Leo Dannin (26 March 1898 – 15 September 1971) was a Danish footballer who played for Kjøbenhavns Boldklub.
[2] Dannin made his debut for Denmark on 5 April 1920 in a 2–0 defeat to Netherlands.
Later that year, he was part of his country's squad at the 1920 Olympic Football Tournament.
Denmark was eliminated in the first round against Spain and finished as the ninth-best team of the 13 participants.
[3] This biographical article related to Danish football is a stub.