| Honorific-Prefix: | Hon'ble |
| Justice Tapen Sen | |
| Office: | President of the Jharkhand State Consumer Disputes Redressal Commission |
| Office1: | Judge of the Calcutta High Court |
| Office2: | Judge, Punjab & Haryana High Court |
| Office3: | Judge, Jharkhand High Court |
| Term Start: | October 2017 |
| Term Start1: | January 2006 |
| Term Start2: | January 2004 |
| Term Start3: | January 2002 |
| Term End: | October 2020 |
| Term End1: | 2 September 2015 |
| Term End2: | 2 January 2006 |
| Term End3: | January 2004 |
Tapen Sen (born 2 September 1953) is a former judge of the Calcutta High Court, the Punjab and Haryana High Court and the Jharkhand High Court and is currently holding the chair as the President of the Jharkhand State Consumer Disputes Redressal Commission.
Born into a wealthy household in Hazaribagh, he completed his schooling from St. Xavier's School and passed his Indian School Examination conducted by the University of Cambridge Local examination Syndicate, U.K. by securing first Division in 1970. He graduated from St. Columba's College, Hazaribag in 1974. He passed his LL.B. Examination from Chotanagpur Law College Ranchi in 1979.
He joined Ranchi Bench of Patna High Court in 1980 and handled cases including writs, criminal law, civil law, arbitration, matrimonial disputes and labour disputes. He was appointed counsel for the State Government of Bihar as Government Pleader for the Ranchi Bench of the Patna High Court on 25 July 1997, which he declined citing personal reasons. He was retained as counsel for various state owned enterprises.
He was elevated as a Permanent Judge of the Jharkhand High Court on 28 January 2002.