Circadian types are related to many physiological, cognitive, and behavioral variables and, therefore, a need for a questionnaire in Farsi language to assess those preferences has emerged. The present study aimed at exploring psychometric properties of the reduced version of the Persian Morningness‐Eveningness Questionnaire (rMEQ). Participants were 268 students recruited from two different universities. Three questionnaires were used to investigate the additional validity data of the Persian version of the rMEQ: Beck Depression Inventory (BDI‐II), Oxford Happiness Questionnaire (OHQ), and General Health Questionnaire (GHQ‐12). The correlations between the rMEQ and the three other questionnaires were −0.45, 0.48, −0.41, respectively. Moreover, the factor analysis of the rMEQ resulted in a single‐factor solution and the Cronbach's α was 0.71. In sum, the Persian rMEQ seemed to be a reliable and valid instrument to differentiate circadian types. We suggest that future studies focus on test‐retest reliability of the rMEQ and an analysis of its unidimensionality with other methods like Item‐Response Theory (IRT).