Prinsep may mean any of several notable members of the British Prinsep family.

John Prinsep was born the son of a vicar in rural Oxfordshire, England, with limited horizons for advancement. He joined the East India Company as a cadet, travelling to Bombay, and was soon engaged in mercantile pursuits, eventually becoming the earliest British merchant to plant indigo, and becoming extremely wealthy in the process. Prinsep subsequently returned to England, where he became a London alderman and a member of parliament, but he eventually lost both large fortunes he created. He was the progenitor of an Anglo-Indian family of merchants, all of whom were artistically gifted.