De komst van Joachim Stiller ("The Coming of Joachim Stiller") is a novel by Belgian author Hubert Lampo, first published in 1960. It deals with the coming and death of Joachim Stiller, a messiah-like figure, and has magical-realist elements in it. A film based on the novel was made in 1976.
The main character in the novel is Freek Groenevelt, a 37-year-old journalist living in Antwerp. From a café, he witnesses four workers breaking up a street and then closing it up again, for no apparent reason. When he decides to write an article about the event, he is contacted by a member of the Antwerp city council, Mr. Keldermans.
Mr. Keldermans explains to Groenevelt that things are happening which he does not understand and make him afraid. Groenevelt is sceptical at first, but Keldermans seems honest and Groenevelt leaves in a state of confusion.
He then receives a letter from Joachim Stiller, in which Stiller announces that the event he witnessed is a portent. To Groenevelt's confusion, the letter is stamped one and a half years before he was born.
Later on, Groenevelt goes to visit the editors of a literary magazine, "Atomium", which has published a very critical article about him. One of the editors, Simone Marijnissen, explains that they have received a letter from, again, Joachim Stiller, asking them not to criticize Groenevelt. They thought that Groenevelt had written the letter himself and saw this as a reason to attack him.
Over the next few days, Joachim Stiller continues to manifest himself. He writes another letter to Marijnissen, and Groenevelt finds a 16th-century book, written by a German theologian from Augsburg called Joachim Stiller. Groenevelt and Marijnissen (who are fast falling in love with each other) visit an art historian, who determines that the letter is thirty-eight years old: again, just one year older than Groenevelt. A graphologist determines that Stiller's handwriting is exactly what he would expect from a man "who doesn't exist at all, but could nonetheless write".