Sheydan or Shidan ({{lang-fa|شيدان}}) may refer to:

• Sheydan, Chaharmahal and Bakhtiari
• Sheydan, Bavanat, Fars Province
• Sheydan, Sepidan, Fars Province
• Shidan, Isfahan
• Sheydan Baraan, Isfahan Province
• Sheydan, West Azerbaijan
• Sheydan, Urmia, West Azerbaijan Province

• The 11th Hour Web Magazine
• The 1219 Nicaean–Venetian Treaty
• The 122nd Fusilier Regiment (Württemberg)
• The 122nd Fusiliers (4th Württemberg)
• The 12 Cellists of the Berlin Philharmonic
• The 12 Days of Christine
• The 12 Diasters of Christmas
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• The 12 Nights of Christmas
• The 12 Nights Of Christmas
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• The 12th Man Again
• The 13 1/2 Lives of Captain Bluebear
• The 1389 Movement
• The 13 Cold-Blooded Eagles
• The 13 Generation
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• The 13-Story Treehouse
• The 13th Dalai Lama
• The 13th Floor (1988 film)
• The 13th Floor Elevators (album)
• The 13th Floor Elevators (band)
• The 13th Man
• The 146 Boat Race
• The 146th Boat Race