Flag code may refer to:

• Flag Code of India
• International maritime signal flags
• United States Flag Code

• Wind-class icebreaker
• WindCoat
• Wind coat APS
• Wind controller
• Wind Corrected Munitions Dispenser
• Wind Creek State Park
• Winddancer
• Wind Dancer (comics)
• Wind-diesel hybrid power system
• Wind direction
• Wind (disambiguation)
• Wind dispersal
• Winde
• Windebank
• Windeby
• Windeby (Amt)
• Windeby Girl
• Windeby I
• Windeck
• Windeck Castle (Weinheim)
• Windecker Industries
• Windecker YE-5
• Winded
• Windego
• Windehausen