INTRODUCTION: Foramen Magnum is an important landmark and is present at the lower part of occipital bone. Diameters of Foramen Magnum are important because vital structures passing through it may endure compression in diseases associated with Foramen Magnum like herniation, meningiomas and achondroplasia and to determine some malformations such as Arnold–Chiari Syndrome, which shows increased transverse diameter. AIM AND OBJECTIVES: To study the morphology of Foramen Magnum in dry human skulls and to evaluate various morphometric parameters like Antero–Posterior diameter, Transverse diameter, Area of Foramen Magnum, Index of Foramen Magnum and Shape. MATERIALS AND METHODS: The present cross–sectional study conducted on 40 dry human skulls in the Department of Anatomy. Various morphometric parameters of Foramen Magnum like Antero–Posterior diameter, Transverse diameter, Area and Index of Foramen Magnum were calculated by using Vernier Calipers and were statistically evaluated. Different shapes of Foramen Magnum were assessed macroscopically into Oval, Round, Hexagonal and Diamond shape. RESULTS: Most common shape of Foramen Magnum was Oval in 22 (55%) skulls followed by Round in 10 (25%), Hexagonal in 6 (15%) and Diamond shape in 2 (5%) skulls. The mean of Antero–Posterior diameter was 35.8±3.0mm; Transverse diameter was 30±2.8mm; Area of Foramen Magnum was 841±136.13mm3 and Foramen Magnum Index was 84.35±6.58. CONCLUSION: The Anatomical knowledge of Foramen Magnum is clinically important for neurosurgeons in analysing the morphometric anatomy of Cranio–Vertebral junction and in transcondylar approach to make a safe occipital condyle resection. These findings also enlighten the anthropologists, morphologists, radiologists, forensic experts and clinical anatomists.