Family name Pasan (Pasan 
, ปสันน์ , ปาษาณ ) , all around the world, is quite a rare last name. The cognomen Pasan is habitual in Sri Lanka, where it is quite a rare surname, Guatemala, where it is a rare surname, and Romania. Measured by absolute frequency, the name is most common in Sri Lanka, India, and Philippines. More frequently, Pasan is the forename as well as the last name.
Ali, Madusanka, Chamikara, Kavisinghe, Kularatne, Limpadapan, Jansawang, Madushanka, Senanayake, Premaratne, Ranasinghe, Dharmasena, Gunasekara, Jayasinghe, Jayatilake, Thanyalukdecho, Tosiriphatana, Wijesinghe, Wijesuriya, Chathuranga, Kariyawasam, Dissanayake, Maduranga, Weerasinghe, Fernando, Thavixay, Ray, Das, Khan, Rait, Dias, Lama, Silva, Mandal, Mahato, Sarkar, Shabar, Bhuyan, Perera, Gamage, Hewage, Bandara, Promsuk, Gamanga, Lamahewa, Athurugiriya, Liyanage, Ngaosuppathon, and Hettiarachchi