Last name เที่ยง (Thiang 
, Noonid 
, เที่ยง) , across the world, is quite a rare cognomen. The surname เที่ยง is characteristic of South-eastern Asia, particularly Malaysia, where it is quite a rare surname, Singapore, and Myanmar. Measured by absolute frequency, it is commonest in Myanmar, Malaysia, and Senegal. Likewise, เที่ยง is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Thiang | Myanmar, Thailand, Senegal, Malaysia, India |
| Noonid | Germany, Thailand |
| Noont | Thailand |
Dingq, Noinual, Noomn, Noon, Noonad, Noonaina, Noonainam, Noonal, Noonanant, Noonar, Noonark, Nooncomewongs, Noond, Noondam, Noonging, Noongning, Noonhcrn, Noonial, Noonice, Noonien, Noonim, Nooning, Noonion, Noonit, Noonjuy, Noonkhow, Noonkleang, Noonloy, Noonman, Noonnark, Noonngarm, Noonny, Noonom, Noonpan, Noonsein, Noonsen, Noonsimi, Noonsoung, Noonting, Noonual, Noonuch, Noonue, Nooon, Teangjam, Thideang, and Yordnoon