Last name สุนิธี (Sunidhi 
, Sunithi 
, สุนิธี ) , all over the world, is a rare cognomen. The cognomen สุนิธี is characteristic of Thailand, where it is a very rare surname, and India, where it is an extremely rare surname. Much more frequently, สุนิธี is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sunidhi | Australia, United Arab Emirates, United States, India, United Kingdom |
| Sunithi | United Kingdom, United States, Thailand, India |
| สุนิธี, Sunithee | Thailand |