Ajit Singh may refer to:

Politicians and rulers

* Ajit Singh (politician, born 1939) (Chaudhary Ajit Singh, 1939–2021), founder of the Rashtriya Lok Dal party in Uttar Pradesh * Ajit Singh (Bihar politician) (in office 2005–2015) * Ajit Singh (Assam politician) (born 1960), cabinet minister in Assam, India * Ajit Singh of Khetri (1861–1901), ruler of Khetri, Rajasthan * Ajit Singh of Marwar (1670s–1724), Maharaja of Marwarlater Jodhpur * Ajit Singh Kohar, cabinet minister in Punjab, India * Ajit Kumar Singh (1962–2007), Indian politician of the Janata Dal (United) party * Ajit Kushwaha (Ajit Kumar Singh, born 1988), Indian politician of the Communist Party of India (Marxist–Leninist) Liberation party * Ajit Pratap Singh (1917–2000), Indian politician * Sardar Ajit Singh (1881–1947), Indian nationalist revolutionary * Ajit Singh (politician, died 2004) (died 2004)

Sportspeople

* Nongthombam Ajit Singh (born 1993), Indian cricketer * Ajit Singh Balla (born 1931), Indian Olympic high jumper * Ajit Singh (racewalker) (born 1936), Indian Olympic racewalker * Ajit Pal Singh (born 1947), Indian field hockey player * Ajit Singh (field hockey) (born 1952), Indian field hockey player

* Ajit Singh (economist) (1940–2015), Professor Emeritus of economics at Cambridge University * Ajit Singh (police officer) (1945–1991), Indian Police Service officer * Ajit Singh (Sikhism) (1687–1705), eldest son of Guru Gobind Singh * Ajit Singh (composer), film composer * Ajit Iqbal Singh (born 1943), Indian mathematician * Ajit Swaran Singh (born 1951), judge in New Zealand {{hndis, Singh, Ajit