Family name สุนิธา (Sunitha 
, Sunithar 
, สุนิธา 
) , globally, is a common surname. The cognomen สุนิธา is characteristic of Kuwait, where it is quite a rare surname, India, and Oman. In absolute terms, the name is most common in India, Kuwait, and Saudi Arabia. More prevalently, สุนิธา is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sunitha | United Arab Emirates, United States, Kuwait, South Africa, India |
| Sunithar | India, Myanmar |
| สุนิธา | Thailand |