NGU may refer to:
- Non-gonococcal urethritis
- Nitroguanidine: a low explosive chemical
- ngu: ISO code of the Guerrero Nahuatl language
Persons
- ʻUelingatoni Ngū: a 19th-century Tongan Crown Prince
- Victor Anomah Ngu: a Cameroonian professor
Science
- Geological Survey of Norway (Norges geologiske undersøkelse in Norwegian)
Universities
- North Greenville University: a university in South Carolina, USA
- Nagoya Gakuin University: a private university located in Nagoya, Japan
- Newgiza University: a private university in Giza, Egypt
Other
- National Guard of Ukraine