| Honorific-Prefix: | Hon. |
| Kanthapillai Velupillai Nadarajah | |
| Constituency Mp1: | Bandarawela |
| Parliament1: | Ceylon |
| Term Start1: | 1947 |
| Term End1: | 1952 |
| Predecessor1: | seat created |
| Successor1: | K. D. Sugathadasa |
| Birth Date: | 6 July 1905 |
| Death Date: | October 2000 |
| Party: | Independent politician |
| Spouse: | Gnanamany née Eliyatamby |
| Children: | Bala (son) |
| Alma Mater: | Jaffna Central College Parameshwara College Ceylon University College |
| Profession: | lawyer, politician |
| Blank1: | Ethnicity |
| Data1: | Ceylon Tamil |
Kanthapillai Velupillai Nadarajah (6 July 1905 - October 2000) was a leading Ceylon Tamil lawyer and Member of Parliament.
Nadarajah was born on 6 July 1905.[1] He was the son of K. Velupillai and Atchikuddy.[1] Nadarajah was educated at Jaffna Central College and Parameshwara College, Jaffna.[1] After school he joined Ceylon University College.[1] He then entered Colombo Law College, qualifying as a proctor.
Nadarajah married Gnanamani, daughter of P. S. Eliyatamby.[1] They had a son (Bala).[1]
Nadarajah started practising law in Badulla in 1930.[1] He continued practising in Uva Province for 54 years.[1]
Nadarajah was a member of Badulla Urban Council for more than ten years.[1] He contested the 1947 parliamentary election as an independent candidate in Bandarawela and was elected to Parliament.[2] [3]
Nadarajah was president of the Badulla Saiva Paripalana Sangam and managing trustee of the Kathir-velauthar Swami Temple in Badulla.[1] He was the founder of first Tamil school in Uva and served as the manager of Badualla Saraswathi Minor and Maha Vidayalam for 30 years.[1]
Nadarajah's family home in Pingarawa was burnt to the ground during the Black July anti-Tamil riots of 1983.[3] Nadarajah fled to Colombo with assistance of J. C. T. Kotelawala, the former MP for Badulla.[3]