The Astronomer

The Astronomer may refer to:


 * Vita Hludovici or the "Limousin Astronomer", the anonymous author of the Vita Hludovici, a biography of Holy Roman Emperor Louis the Pious
 * The Astronomer (Vermeer), a 1668 oil painting by the 17th century Dutch painter Johannes Vermeer
 * The Astronomer, a character in the Wild Cards book series