Surname Jayathu (Jayathu 
) , all over the world, is an extremely rare family name. The cognomen Jayathu is habitual in Southern Asia, particularly India, where it is an extremely rare surname. Predominantly, Jayathu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jayathu | India, Sri Lanka |
Udaya, Ayodya, Koshala, Fernando, Mahagodage, Abeysekara, Thathsara, Chathuramadhu, Amarasinghe, and Jayawardana