Background: Several pathological abnormalities can affect spleen size, which can be difficult to diagnose via routine palpation in neonates. Knowledge of normal spleen size, and its relation with age and biometric parameters (length and weight) of physical growth, is important in determining mild splenomegaly. Objective: The purpose of this study is to measure splenic size in Indian neonates, establish fresh parameters of normal splenic size, and establish correlation with age, body length and weight. Material and methods: The study was conducted in the Department of Radiology at Chhatrapati Shivaji Maharaj Hospital, Thane. We conducted a prospective study of 51 normal neonates visiting our hospital; the majority of whom were either born at the hospital or came for reasons other than those with splenic pathology. The child?s length, weight, and gestational history of the mother were noted. A thorough history was elicited to rule out past/current pathologies affecting the spleen. Routine ultrasonography of the abdomen and pelvis was performed and the child?s spleen was measured in two dimensions. Results: The mean splenic length is 3.54 +- 0.19 cm, with a range of 3.2-3.92 cm. The splenic longitudinal dimension showed better correlation with body parameters, with neonatal length showing highest correlation coefficient. Conclusion: Knowledge of the normal dimensions of a neonatal normal spleen will aid radiologists and pediatricians in identifying splenomegaly at an earlier stage. We believe to have provided reference values to assist in the early identification of splenic disorders.  Kulcsszavak: sonography, neonates, splenic size, splenomegaly