OBJECTIVES: Recent studies present a possible connection between diabetes and vestibular hypofunction and balance disorders. The aim of this paper was to present a comparison of the results of objective vestibular function tests between diabetics and non-diabetics. STUDY DESIGN: The research was organized as a retrospective cohort study in which, according to the available data, the presence of diabetes, the results of cervical and ocular evoked miogenic potentials (oVEMP, cVEMP) and bi-thermal caloric test were analyzed in patients with vestibular hypofunction. PARTICIPANTS AND METHODS: 100 patients were included in the research. Patients were divided into two groups; patients with vestibular hypofunction and type I or type II diabetes and non-diabetics with vestibular hypofunction. All of them underwent a bi-thermal caloric test, oVEMP and cVEMP. RESULTS: Vestibular asymmetry was significantly higher, median 71, in the diabetic group compared to the non-diabetic group (P < 0.001). oVEMP (P = 0.01) and cVEMP (P = 0.009) were significantly higher in diabetics compared to non-diabetics. Out of a total of 23 (23%) cVEMP pathological findings, there were significantly more, 13 (35%) of them from the diabetic group, compared to non-diabetic patients (P = 0.03). CONCLUSION: There is a greater degree of damage to the cupular organ and more frequent damage to the otolithic organ in diabetics. Damage to the sacculus is more frequent than to the utriculus in the group of diabetics. It is necessary to monitor vestibular function in diabetics and, if necessary, start rehabilitation as early as possible.