Donyo Kuzmanov played in a prestigious Bulgarian club FC Shipka Sofia[1] reaching with them the third place in the 1937–38 Bulgarian championship.
After winning the 1939 Bulgarian Cup Final he moved to Yugoslavia and joined Serbian club SK Jedinstvo Beograd.
[3] He also played with Jedinstvo in the 1940–41 Serbian League scoring one goal.
[4] On 2 October 1938, in Sofia, he played for the Bulgaria national team in a friendly match against Germany.
This biographical article related to association football in Bulgaria, about a defender, is a stub.