Cognomen Rijnieks (Rijnieks 
) , in the entire world, is a very rare last name. The surname Rijnieks is habitual in Latvia, where it is quite a rare surname, Canada, where it is an extremely rare surname, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Rijnieks | Canada, United States, Latvia |
| jānis rijnieks LV (b. 1905) |
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| dailis rijnieks LV (b. 1934) |
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| juris rijnieks (b. 1958) |
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