Jonathan Harker is a fictional character and one of the main protagonists of Bram Stoker's 1897 Gothic horror novel Dracula. An English solicitor, his journey to Transylvania and encounter with the vampire Count Dracula and his Brides at Castle Dracula constitutes the dramatic opening scenes in the novel and most of the film adaptations.

Dracula is a novel by Bram Stoker, published in 1897. An epistolary novel, the narrative is related through letters, diary entries, and newspaper articles. It has no single protagonist and opens with solicitor Jonathan Harker taking a business trip to stay at the castle of a Transylvanian nobleman, Count Dracula. Harker escapes the castle after discovering that Dracula is a vampire, and the Count moves to England and plagues the seaside town of Whitby. A small group, led by Abraham Van Helsing, investigate, hunt and kill Dracula.