Mathavakannan Kalimuthu (Tamil language: மாதவக்கண்ணன் காளிமுத்து; born 10 May 1978) is an Indian Singaporean who, together with his two friends, murdered a gangster named Saravanan Michael Ramalingam on 26 May 1996. Mathavakannan, who was arrested on 4 July 1996, was tried and convicted of murder by the High Court of Singapore. As murder was a hanging offence in Singapore and since he was 16 days past his 18th birthday when he committed murder, Mathavakannan was sentenced to suffer the mandatory sentence of death on 27 November of the same year he killed Saravanan. Mathavakannan's two accomplices were also found guilty and sentenced to death in the same trial.