Family name Malomuzh (Malomuzh 
) , in the world, is a very rare surname. The cognomen Malomuzh is characteristic of Latvia, where it is a rare surname, Estonia, and Costa Rica, where it is a very rare surname. In absolute terms, it is commonest in Russia, Latvia, and Ukraine.
| VARIANT | COUNTRY |
|---|---|
| Malomuzh | Russia, Costa Rica, Estonia, Latvia, Ukraine |