Ingram Frizer was an English gentleman and businessman of the late 16th and early 17th centuries who is notable for his reported killing of the playwright Christopher Marlowe in the home of Eleanor Bull on 30 May 1593. He may have been working with the English secret service. He has been described as "a property speculator, a commodity broker, a fixer for gentlemen of good worship" and a confidence trickster gulling "young fools" out of their money.