Mahaan (transl. Great) is a 1983 Hindi-language action thriller film produced by Satyanarayana and Suryanarayana and directed by S. Ramanathan. The film stars Amitabh Bachchan in a triple role alongside Waheeda Rehman, Parveen Babi, Zeenat Aman, Ashok Kumar, Amjad Khan, Kader Khan, Aruna Irani, Sujit Kumar and Shakti Kapoor. The music is by R.D. Burman. The film is an official remake of the 1978 Kannada film Shankar Guru.

The film features popular songs like "Jidhar Dekhoon Teri Tasveer Nazar Aati Hai", "Pyaar Mein Dil Pe Maar De Goli" and "Ye Din To Aata Hai Ek Din Jawaani Mein". Amitabh Bachchan played a triple role in the film after playing double roles in several of his earlier films. This is also the only film of Amitabh Bachchan so far where he played a triple role.

The film celebrated a golden jubilee in South India and in rest of the India it celebrated silver jubilee.