Around the world, 泗忠 (泗忠 
) is a very rare masculine forename. The forename 泗忠 is habitual in Eastern Asia, particularly China, where it is an extremely rare boy's name. Very seldom, 泗忠 is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| 泗忠 | China |