Calouste Sarkis Gulbenkian (Western ; 23 March 1869 – 20 July 1955), nicknamed "Mr Five Per Cent", was a British-Armenian businessman and philanthropist.

The Calouste Gulbenkian Museum houses one of the world's most important private art collections.

The Calouste Gulbenkian Foundation, commonly referred to simply as the Gulbenkian Foundation, is a Portuguese institution dedicated to the promotion of the arts, philanthropy, science, and education.

Nubar Sarkis Gulbenkian (2 June 1896 – 10 January 1972) was an Armenian-British business magnate and socialite born in the Ottoman empire.