Valdemar may refer to: Valdemar of Sweden (1239-1302) Valdemar of Denmark, several kings and nobles The Facts in the Case of M. Valdemar, 1845 short story by Edgar Allan Poe Edgar Allan Poe's Valdemar (radio), 2000 adaptation of Poe's story by the Radio Tales series for National Public Radio Valdemar, pseudonym for Vladimir Ivanov, Bulgarian musician in the 2003 band Demenzia Valdemar, fictional location on Velgarth, in several books and stories by Mercedes Lackey… (More on Valdemar)