Sardar Balbir Singh Kullar (8 August 1942 – 28 February 2020) was an Indian field hockey player and a Punjab Police officer. Alternative spellings of his last name include Khullar. Balbir Singh was born in the Sansarpur village of the Jalandhar district. He was the captain of the All India Schools during 1957–1960, and also played as part of the Combined University Team. At the national-level, he represented the hockey teams of Punjab State, Indian Railways and Punjab Police. For a brief time, he also played for the little-known hockey team of Mohun Bagan. Balbir Singh joined the Punjab Armed Police in 1962, and became an Assistant Sub-Inspector of the Punjab Police in 1963.