Family name Udam (Udam 
, Удам 
) , around the world, is a rare last name. The last name Udam is habitual in Estonia, where it is quite a rare surname, Latvia, where it is a rare surname, and Nigeria. In absolute terms, it is commonest in Nigeria, India, and Estonia. More frequently, Udam is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Udam | Estonia, India, Sri Lanka, Nigeria, Malaysia |
| Удам | Russia, Ukraine |
| johann eberhard udam (b. 1698) |
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| erik udam Estonian independence activist and wrestler, EE (b. 1938) |
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| ülle udam (b. 1938) |
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| ülle udam EE (b. 1943) |
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| jüri-mikk udam Estonian rower, EE (b. 1994) |
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