Ananthan is a surname and a given name. Notable people with the name include:
Surname: Garggi Ananthan, Indian actress and theatre artist working in Malayalam cinema and theatre Kumari Ananthan (1933–2025), Indian politician, leader of the Tamil Nadu Congress Committee Ramkripa Ananthan (born 1971), Indian car designer, head of design at Ola Electric Sivasakthy Ananthan (born 1964), Sri Lankan Tamil politician and Member of Parliament Thanuja Ananthan (born 1985), Malaysian model, Miss World Malaysia 2009 Uday Ananthan, Indian filmmaker who works in Malayalam cinema
Given name: Ananthan Somasundaram, Malaysian politician, Senator
See also Aayiram Naavulla Ananthan (transl. Thousand-tongued Anandan), 1996 Indian Malayalam-language medical action drama film Death of Kugan Ananthan (died 2009), Royal Malaysian Police detainee who died in a police lock-up