Cognomen Gugan (Gugan 
) , worldwide, is a rare last name. The last name Gugan is characteristic of Hungary, where it is a rare surname, Singapore, and United Arab Emirates. In absolute terms, it is commonest in India, Afghanistan, and Hungary. More frequently, Gugan is the forename as well as the last name.
Mac, Kumar, Kutty, Kugan, Rajan, Vijay, Sundar, Balaji, Nathan, Moorthy, Chand, Murugan, Agrawal, Eswaran, Selvaraj, Arumugam, Manoharan, Rajendran, Thangaraj, Loganathan, Kunasegaran, Sarathi, Anand, Singh, Saini, Sah, Sih, Ram, Raj, Das, Gir, Lal, Mani, Siva, Balu, Babu, Kaur, Raja, Devi, Gugu, Guga, Gill, Ghai, Nath, Velu, Mohan, Ilanchezhiyan, and Ariyanayagipuram Mat