Family name โอ๊ต (Ot 
, Oat 
, โอ๊ต) , all over the world, is a common last name. The cognomen โอ๊ต is characteristic of Mongolia, where it is quite a common surname, Saudi Arabia, where it is quite a rare surname, and Botswana. Measured by absolute frequency, it is the most numerous in Mongolia, Saudi Arabia, and Turkey. Much less frequently, โอ๊ต is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ot | Mongolia, Saudi Arabia, Turkey, Indonesia, Morocco |
| Oat | China, Myanmar, India, Egypt, Indonesia |