Cognomen 木秀雄 (木秀雄 
) , around the world, is a very rare surname. The surname 木秀雄 is habitual in Eastern Asia, particularly China, where it is an extremely rare surname. More prevalently, 木秀雄 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 木秀雄 | China |