Cognomen Shanmukhan (Shanmukhan 
) , in the entire world, is a rare last name. The last name Shanmukhan is habitual in United Arab Emirates, where it is a rare surname, India, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname. More frequently, Shanmukhan is the forename as well as the last name.
Das, Battinapati, Narayanan, Chettiyar, Chiyyarath, Chattiyar, Nadumuri, Chettiar, Valloor, Maniyan, Pillai, Achari, Pilla, Kolla, Asari, Nair, Karunakaran, and Ramakrishnan