Family name जयदेव (Jaidev 
, Jayadeva 
, Jayadewa 
) , globally, is quite a rare surname. The cognomen जयदेव is habitual in Sri Lanka, where it is quite a rare surname, Singapore, where it is a rare surname, and Malaysia. In absolute terms, it is commonest in Sri Lanka, India, and the United States. More frequently, जयदेव is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jaidev | India, United Arab Emirates, United States, Malaysia, Indonesia |
| Jayadeva | United States, Australia, Malaysia, Sri Lanka, India |
| Jayadewa | United States, Qatar, Sri Lanka |