Sri Lankabhimanya Christopher Gregory Weeramantry, AM (born 17 November 1926) is a Sri Lankan lawyer who was a Judge of the International Court of Justice (ICJ) from 1991 to 2000, serving as its Vice-President from 1997 to 2000. Weeramantry was a Judge of the Supreme Court of Sri Lanka from 1967 to 1972. He is currently an Emeritus Professor at Monash University.