Princess Jayanti of Nepal or Jayanti Rajya Lakshmi Devi (August 4, 1946 – June 1, 2001) was a member of the Nepalese royal family. She was a granddaughter of King Tribhuvan of Nepal. An active social worker, she is known for her contributions to cancer relief programs in Nepal. She was one of the members of the Nepalese royal family who were killed in the Nepalese royal massacre.