Last name Uiga (Uiga 
) , across the world, is a rare cognomen. The surname Uiga is characteristic of Estonia, where it is quite a rare surname, Canada, where it is a very rare surname, and the United States, where it is an extremely rare surname. Very seldom, Uiga is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Uiga | Estonia, India, Canada, United States |
| sigrid uiga Estonian painter, EE (b. 1922) |
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| johannes uiga (b. 1918) |
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| liis uiga researcher |
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| kalev uiga researcher |
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