Comai County (Tibetan: མཚོ་སྨད་རྫོང་།, Chinese: 措美县) is a county of Shannan located in the south-east of the Tibet Autonomous Region, China.

Comai County is famous for its Tibetan Mastiffs and known as the home of Tibetan Mastiff.

Tibetan Mastiff is 24-28 inches tall (at shoulder) and weighs 140-180 pounds. The dog is commonly found wearing a red yak's-hair collar.

Comai County contains 2 towns and 2 townships.

Name	Chinese	Hanyu Pinyin	Tibetan	Wylie
Towns
Comai Town	措美镇	Cuòměi zhèn	མཚོ་སམད་གྲོང་རྡལ།	mtsho smad grong rdal
Drigu Town	哲古镇	Zhégǔ zhèn	གྲི་གུ་གྲོང་རྡལ།	gri gu grong rdal
Townships
Naixi Township	乃西乡	Nǎixī xiāng	གནས་བཞི་ཤང་།	gnas bzhi shang
Godü Township	古堆乡	Gǔduī xiāng	སྒོ་བསྡུས་ཤང་།	sgo bsdus shang