Look up Sidonia in Wiktionary, the free dictionary.

Sidonia is a feminine given name. It may also refer to:

• 579 Sidonia, an asteroid
• USS Sidonia (AKA-42), a U.S. Navy attack cargo ship
• Order of Sidonia, a chivalric order for women instituted by the Kingdom of Saxony
• Sidonie (Brumov-Bylnice), a district of Brumov-Bylnice, Czech Republic
• Sidonia, Tennessee, Weakley County, Tennessee
• Fromont and Risler, also titled Sidonie, an 1874 French novel
• Sidonia, a starship in Knights of Sidonia, a Japanese manga series by Tsutomu Nihei

• Cydonia (Mars), a region on the planet Mars
• Duke of Medina Sidonia, a noble Spanish title
• Medina-Sidonia, a city and municipality in Spain
• Kydonia or Cydonia, an ancient city state on Crete

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