Last time I looked he was buried in a cemetery in Momartre in Paris...can't remember the name of the cemetery. Here's an excerpt from a link:
Morrison is buried in "The Poets' Corner" of the famous Père Lachaise cemetery in eastern Paris. In the past, some of his fans were nuisances, leaving litter, graffiti, and cannabis behind them after their visits. Well-publicized complaints by numerous families of the deceased about desecration of surrounding grave sites led many to expect that Morrison's remains would be forcibly relocated when the 30-year lease to his plot expired. Parisian authorities, however, have denied any such intention. Indeed, Morrison's grave has become one of the most popular tourist destinations in Paris, along with Eiffel Tower, Notre Dame, and the Louvre. In 1993, his parents visited the site and made arrangements with a cleaning company to have the graffiti removed from the nearby tombstones. (WGS84: 48°51′33.8″N, 2°23′37.2″E)
Morrison's gravestone has a Greek inscription reading Κατά τον δαίμονα ἑαυτοῦ, in capital letters (ΚΑΤΑ ΤΟΝ ΔΑΙΜΟΝΑ ΕΑΥΤΟΥ). The meaning intended by the Morrison family when the inscription was selected is "True to his own spirit". Morrison's father either selected the phrase or drafted it himself. The literal meaning is "according to his own daimōn", an Ancient Greek word that usually implies luck, fortune, "guiding star" and the like, with no negative or pejorative connotations. Various erroneous interpretations of the inscription have been proposed, including, "down with his own demons" (presumably in Hell), "burnt by his demons", "with the devil himself."