psiholog

1. psychologist
   Moja sestra radi kao psiholog u osnovnoj školi. — My sister works as a psychologist at a primary school.
   Posle razvoda je počeo da ide kod psihologa. — After the divorce he started seeing a psychologist.

For a woman both psiholog and psihološkinja are used; a psihijatar is a medical doctor, not a psychologist.