Infertility is one of the medial, social and psychological burdens in this part of world. Thyroid dysfunction can lead to menstrual disturbance, anovulatory cycles, and decreased fecundity. Proper management of thyroid dysfunction canresult restoration of normal fertility. Therefore it is very important to screen thyroid abnormalities among women with infertility. This study aimed to determine association of thyroid dysfunction among infertile women. This study comprises total of 735 primary infertile women with age ranging from 20 to 35 years. Blood samples were collected and subjected for estimation of thyroid hormones. Out of 735 cases 547 (74.4%) were euthyroid. 56 (7.6%) have primary hypothyroidism, 31 (4.2%) have primary hyperthyroidism, 87 (11.8%) have subclinical hypothyroidism, and 8 (1.1%) have subclinical hyperthyroidism.