Last name 肇桢 (肇桢 
) , all over the world, is a very rare family name. The cognomen 肇桢 is habitual in Eastern Asia, particularly China, where it is an extremely rare surname. More frequently, 肇桢 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 肇桢 | China |