Hardial Singh Bajaj (born April 5, 1905 in Khanga Dogran, British India died September 18, 1967 in Singapore) was a prominent Southeast Asian of Indian origin. He was the son of Mehar Singh (father) and Thakur Devi (mother), the eldest of six children. He was married to Kirpal Kaur, daughter of Tara Singh (Lalaji).