Cognomen Rykman (Rykman 
, Рикман 
) , worldwide, is a rare family name. The last name Rykman is habitual in Lithuania, where it is a rare surname, Russia, where it is a very rare surname, and Kazakhstan. Not in comparison with a country's population, this name is the most popular in Russia, the United States, and Lithuania. Very seldom, Rykman is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rykman | Canada, Philippines, Lithuania, United States, South Africa |
| Рикман | Kazakhstan, Russia, Ukraine |