Renfield’s name appears only towards the end of the original typewritten draft of the novel; earlier, he is referred to mostly as “the flyman” or “the fly patient.” Sometimes there is a blank space where his name should be. A few times, he is called “Renfold.”
Eighteen-Bisang and Miller conclude that his name probably came from “Rheinfeldt,” a name in Sheridan Le Fanu’s vampire novella Carmilla, which was published 25 years before Dracula, in 1872. Like Renfield, Bertha Rheinfeldt (yes, a woman; “Carmilla” mostly features women) is an early harbinger of the coming of a vampire—a first victim, a lost soul.