Sivanesan is a surname and a given name. Notable people with the name include:
Given name: Sivanesan Achalingam (born 1956), Malaysian politician
Surname: Kandiah Sivanesan, Sri Lankan Tamil politician and provincial minister Kiddinan Sivanesan (1957–2008), Sri Lankan Tamil politician and former Member of Parliament S. Sivanesan (born 1990), Malaysian footballer Thillaiyampalam Sivanesan (1963–2009), aka Colonel Soosai, head of the Sea Tigers, the naval wing of the Liberation Tigers of Tamil Eelam
See also K. Sivanesan (disambiguation)