Tilak is a masculine given name or surname. Notable people with the name include:
Given name Tilak Ram Acharya, Nepali educator and academic administrator Tilak Raj Behar, Indian politician Tilak Bhandari (born 2004), Nepali cricketer Tilak Kumar Chakraborty, Indian politician Tilak Goonaratne, Sri Lankan civil servant and diplomat Tilak Ram Gupta, Indian politician Tilak Jayaratne, broadcaster, teacher, and writer Tilak Marapana, Sri Lankan lawyer Tilak Pariyar, Nepali politician Tilak Raj Prabhakar, Indian mathematician Tilak Raj, Indian cricketer Tilak Ratnayake, former governor of Uva Province, Sri Lanka Tilak Ram Sharma, Nepali politician Tilak Shekar, Indian actor Tilak Ram Tharu, Nepali track and field athlete Tilak Varma (born 2002), Indian cricketer Tilak Weerasooriya, Sri Lankan physician and professor
Surname Bal Gangadhar Tilak, Indian independence activist Christopher Tilak, Indian politician Devarakonda Balagangadhara Tilak, Indian poet and fiction writer Jayant Shridhar Tilak, Indian politician K. B. Tilak, Indian independence activist and film producer Lakshmibai Tilak, India-based writer Mukta Tilak, Indian politician Narayan Vaman Tilak, British India poet Raghukul Tilak, former governor of Rajasthan, India Raj Joshi Tilak (born 1936), Indian sprinter Rajni Tilak, Indian activist Shridhar Balwant Tilak, India-based activist and writer Suyash Tilak, Indian actor