Cognomen Riečan (Riečan 
) , in the world, is a very rare last name. The family name Riečan is characteristic of Eastern Europe, particularly Slovakia, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Riečan | Slovakia |
|
beloslav riečan Slovak mathematician, SK (b. 1936) |
|
| ján riečan SK (b. 1923) |
|
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| ján riečan Slovakian Righteous Among the Nations, SK |
|