Borthakur or Barthakur (Assamese: বৰঠাকুৰ) is an Indian surname originating from the state of Assam. It refers to the royal Assamese Brahmin priest family. The Borthakur families can be found in Sivasagar, Jorhat, Golaghat, Kamrup, Dibrugarh and many other Districts of Assam. They originated from Benaras and some of them were from Kannauj.

Notable people of this surname include: