Background: Thyroid diseases are considered the commonest endocrine disorders worldwide. Fine needle aspiration cytology (FNAC) is the mosteasy, reliable screening test in diagnosing thyroid lesions. Objectives: To determine the frequency of Bethesda system diagnostic categories and cyto-histopathological correlation of FNAC results. Material and methods: This study comprised 488 thyroid FNA smears. cyto-histopathological correlation was conducted on surgically excised cases. Results: Out of 488 of thyroid FNAC smears, thyroidectomy was done for one hundred cases. Sensitivity, specificity, PPV, NPV and accuracy of FNAC were 82.8%, 94%, 88.9%, 90.4% and 89.9% respectively. Conclusion: FNAC is a highly sensitive and specific method in diagnosing different thyroid lesions.