The Almanach de Gotha (German: Gothaischer Hofkalender, pronounced [ˈɡoːtaɪʃɐ ˈhoːfkaˌlɛndɐ]) is a directory of Europe's royalty and higher nobility, also including the major governmental, military and diplomatic corps, as well as statistical data by country. First published in 1763 by Carl Wilhelm Ettinger (de) in Gotha in Thuringia, Germany at the ducal court of Frederick III, Duke of Saxe-Gotha-Altenburg, it came to be regarded as an authority in the classification of monarchies and their courts, reigning and former dynasties, princely and ducal families, and the genealogical, biographical and titulary details of Europe's highest level of aristocracy. It was published annually from 1785 until 1944 by Justus Perthes Publishing House in Gotha.
In 1992, the family of Justus Perthes re-established its right to use the name Almanach de Gotha. In 1998, a London-based publisher, John Kennedy, acquired the rights for use of the title of Almanach de Gotha from Justus Perthes Verlag Gotha GmbH, then a fully owned subsidiary of Ernst Klett Schulbuchverlag GmbH, Stuttgart. The last edition produced by Justus Perthes was the 181st, produced in 1944. After a gap of 54 years the first of the new editions (the 182nd) was published in 1998 with English, the new diplomatic language, used as the lingua franca in the place of French or German. Perthes regards the resultant volumes as new works, and not as a continuation of the editions which Perthes had published from 1785 to 1944. Two volumes have been printed since 1998, with Volume I containing lists of the sovereign, formerly sovereign and mediatised houses of Europe, and a diplomatic and statistical directory; and Volume II containing lists of the non-sovereign princely and ducal houses of Europe.