Inner speaking, the covert talking that goes on inside a person's mind, can shape creative thought. How the phenomenological properties and quality of inner speaking correlate with a person's creative potential, however, is an open scientific problem. To explore this, participants ( n = 267) filled in the revised Varieties of Inner Speech Questionnaire and the revised Launay Slade Hallucination Scale (auditory subscale), and performed three tests of creative potential: one divergent (Alternative Uses Test) and two convergent thinking tests (Compound Remote Associates Test, short Hagen Matrices Test). The results showed that a tendency to engage in condensed and evaluative/ critical inner speaking negatively correlated with convergent thinking ability; and the results pointed toward a potential negative correlation of auditory hallucination proneness with divergent and convergent thinking ability. No evidence was found for a correlation of the dialogicality, imagining of others’ voices, or positive/regulatory aspect of the participants day-to-day inner speech, with creative potential. Herewith, the presented study contributes novel insight into the relationship between the varieties of inner speech and creative potential.