Guo (disambiguation)
Guo or GUO may refer to:
People
- Guo (郭), a Chinese surname
 - Consort Guo (disambiguation)
 - Empress Guo (disambiguation)
 - Prince Guo
 
Places
- Guo Prefecture (disambiguation)
 - Eastern Guo, an ancient Chinese state
 - Western Guo, an ancient Chinese state, divided into Northern Guo and Southern Guo
 
Other uses
- Guayabero language, a Guahiban language of Colombia
 - Gualaco Airport, in Honduras
 - Main Guard Directorate (Russian: Glavnoye upravleniye okhraneniya), a branch of the Soviet Union's KGB