Onkar may refer to:
Om, the sacred Hindu syllable or mantra Ik Onkar, the sacred Sikh symbol
People Onkar Bhojne, Indian actor and comedian Onkar Kanwar, Indian businessman Onkar Nath Srivastava (1942–2021), Indian physicist Onkar Rai, Kenyan racing driver Onkar Raut (born 1990), Indian actor Onkar Sahota, British politician Onkar Sahu, Indian politician Onkar Singh, Indian engineering professor Onkar Singh, Indian politician Onkar Singh Kalkat, Indian military officer Onkar Singh Lakhawat (born 1949), Indian politician