Cognomen Usop (Usop 
) , in all the world, is quite a common surname. The family name Usop is characteristic of South-eastern Asia, particularly Brunei, where it is quite a common surname, Malaysia, where it is quite a rare surname, and Philippines. In absolute terms, it most frequently occurs in Philippines, Malaysia, and Saudi Arabia. Very seldom, Usop is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Usop | Saudi Arabia, Philippines, Malaysia, United Arab Emirates, Indonesia |
| k.m.a. usop Indonesian politician, ID (b. 1936) |
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| mutiara usop Indonesian politician (born 1953 in Kuala Kapuas), ID (b. 1953) |
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