Velayuthapillai Baheerathakumar (Tamil: வேலாயுதபிள்ளை பகீரதகுமார் Vēlāyutapiḷḷai Pakīratakumār; 8 January 1966 – 4 April 2009; commonly known by the nom de guerre Theepan) was a leading member of the Liberation Tigers of Tamil Eelam (LTTE), a separatist Tamil militant organisation in Sri Lanka. He played a leading role in the LTTE's military victories in the Vanni during Eelam War III, including Mullaitivu (1996), Kilinochchi (1998), Oddusuddan (1999) and Elephant Pass (2000). He was killed at the Battle of Ananthapuram in the last days of the Sri Lankan Civil War.