There is no single historical “flag of Osiris” from ancient Egypt. Instead, Osiris is represented by symbolic imagery commonly used on banners, amulets, and tomb paintings, including the Djed pillar (stability), the Atef crown (feathered white crown), and the crook and flail. Modern interpretations often feature these symbols in black and gold to represent death and resurrection. 

Key Symbols Representing Osiris:

• Djed Pillar: Symbolizes the backbone of Osiris, representing stability, strength, and his enduring power.
• Atef Crown: A white crown flanked by ostrich feathers, representing his role as a deity.
• Crook and Flail: Symbols of royal authority and power over the afterlife.
• Mummiform Appearance: Depicted as a mummy with green (rebirth) or black (Nile fertility) skin.
• Ankh: Frequently associated with Osiris as the god of life and resurrection. 

Other Uses of “Flag of Osiris”:

• Fictional/Modern Design: A “flag of the Osiris Union” has been created for fictional scenarios, using gold to represent the native people and symbols of a crescent and two bars.
• Merchandise: Decorative flags and car flags exist featuring artistic, modern interpretations of the god. 

While not a flag, the Eye of Horus is also closely associated with the protection and restoration of Osiris.