Cognomen Ishara (Ishara 
) , in the entire world, is quite a common family name. The surname Ishara is habitual in Sri Lanka, where it is quite a common surname, Qatar, where it is a rare surname, and Kuwait. Measured by absolute frequency, it is commonest in Sri Lanka, Indonesia, and the Democratic Republic of the Congo. More prevalently, Ishara is the forename as well as the last name.
Ram, Maduranga, Madushani, Madusanka, Pathirana, Dilrukshi, Jayaweera, Ekanayaka, Madhushani, Madushanka, Maduwanthi, Sandaruwan, Ranasinghe, Rathnayake, Rathnayaka, Gunasekara, Jayasinghe, Amarasinghe, Chathuranga, Dissanayake, Nanayakkara, Weerasinghe, Udayanga, Hettiarachchi, Fernando, Liyanage, Rai, Ros, Devi, Singh, Silva, Begam, Khatun, Perera, Peiris, Pillay, Gamage, Lakmal, Naidoo, Herath, Maharaj, Sampath, Bandara, Dilshan, Lakshan, Madushan, Sewwandi, Jayakody, and Wickramasinghe