Sibley

• Sibley (surname)
• Sibley (automobile)

• Sibley Peninsula, Ontario (on Lake Superior)

In the United States:

• Sibley, Illinois
• Sibley, Iowa
• Sibley, Kansas
• Sibley, Louisiana
• Sibley, Mississippi
• Sibley, Missouri
• Sibley, North Dakota
• Sibley County, Minnesota
• Sibley Memorial Hospital, in Washington, D.C.
• Robert Sibley Volcanic Regional Preserve, in California
• Sibley Park

• Sibley–Ahlquist taxonomy of birds, a phenetic DNA-based taxonomy of birds
• Sibley's, a former New York state department store chain
• Sibley's Shoes, a former Michigan retail footwear chain
• Sibley fire, a 1904 New York disaster