The objective of this study was to determine the association between Body Mass Index (BMI) and migraine. This prospective study took place from 5th February, 2017 to 5th August, 2017 at a Military Hospital in Rawalpindi. Migraine in subjects was diagnosed according to the ICHD-III criteria by clinicians after taking an informed, written consent from 78 patients and the data was analysed using SPSS 22. Of the 78 patients, 35(44.9%) were males and 43(55.1%) were females. Out of the 78 subjects, 9(11.5%) were underweight, 33(41.0%) were of normal weight, 9(14.10%) were overweight, 19(24.4%) were obese and 7(9.0%) were morbidly obese. The p-value calculated was 0.892 which indicates no significant evidence of any association between BMI and migraine in the survey population reporting at the Rawalpindi Military Hospital. A follow-up study at a national level with much larger sample size will be able to better predict the changing results in our country, because as of now the association between BMI and migraine is debatable.