Surname Раичук (Раичук 
, Raychuk 
) , around the globe, is a very rare cognomen. The cognomen Раичук is habitual in Estonia, where it is a rare surname, Russia, where it is a very rare surname, and Israel. In absolute terms, it most frequently occurs in Russia, the United States, and Estonia.
| VARIANT | COUNTRY |
|---|---|
| Раичук | Russia |
| Raychuk | Russia, Estonia, United States, Ukraine, Israel |