Sibley
Sibley may refer to:

Sibley (surname)
Sibley (automobile)

Places and landmarks
In Canada:

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

Other
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