Wishbone Ridge ({{coord|84|56|S|166|56|W|display=inline,title}}) is a Y-shaped ridge trending northeast from the main ridge of the Duncan Mountains. The feature is 2 nautical miles (3.7 km) east of Morris Peak and is unique among the series of ridges in the Duncan Mountains in that it bifurcates, giving an aerial view similar in shape to a "wishbone." The descriptive name was suggested by Edmund Stump of the United States Antarctic Research Program (USARP) Ohio State University field party who, with C.E. Corbatoo and P.V. Colbert, geologically mapped the ridge on December 21, 1974.

• First century
• First century AD
• First century BC
• First century B.C.
• First century BCE
• First century CE
• First chamber
• First Chechen War
• First Chechnya War
• First Chief Directorate
• First Chifley Ministry
• First Choice
• First Choice Airways
• First Choice (band)
• First Christian Church, Columbus, IN
• First Christian Church (Columbus, Indiana)
• First Chronicles
• First Circle
• First Circuit Court of Appeals
• First civilizations
• First Civil War
• First-class
• FirstClass
• First class
• First class airport