Gangu can refer to:
*
Gangu County
Gangu County () is a county in the southeast of Gansu province, China. It is under the administration of Tianshui City and is the most populous county in Gansu. Its postal code is 741200, and in 1999 its population was 570,318 people.
It was estab ...
, a county in the province of Gansu, China
* ''
Gangū'', stone figurines from Jōmon Japan
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