Nikola Karaklajić (Cyrillic: Никола Караклајић, Belgrade, 24 February 1926 – 16 December 2008) was a Serbian chess master. He is the first notable exponent and probably inventor of the Belgrade Gambit. He won the Yugoslav Chess Championship in 1955, competed in the 12th Chess Olympiad, Belgian Chess Championship, European Team Chess Championship and played notable games with Hans Berliner, Borislav Ivkov and others as part of the peer group of strong Yugoslav players contemporary with Borislav Milić.