Last name こう (黄 
, 恰 , 黃 ) , in the world, is a prevalent family name. The cognomen こう is habitual in Eastern Asia, particularly China, where it is a prevalent surname.
| VARIANT | COUNTRY |
|---|---|
| 黃, 黄, 恰 | China |
Ang, Cao, Chuang, Eng, Gang, Gao, Guan, Guang, Guāng, Gāo, Hang, Hao, Hau, Heung, Hong, Hou, Hoàng, Huang, Huynh, Huáng, Huỳnh, Hwang, Hâu, Hóng, Hông, Hướng, Hǎo, Hạng, Hầu, Ing, Kang, Kao, Kchang, Khang, Khng, Ko, Koh, Kuan, Kwong, Kô, Kāng, Kō, Ng, Oei, Oey, Ong, Ooi, Ung, Wee, Wong, Xiang, Гао, Кан, Канг, Коу, Сян, Хван, Хоу, Хуан, Хуанг, גאו, הו, הואנג, قاو, كانغ, هوانغ, อึ้ง, แซ่อึ้ง, カン, ガン, グァン, シャン, ハオ, ハン, ファン, ホン, 侯, 光, 剛, 向, 好, 姜, 姜氏, 幸, 康, 弘, 强, 江, 港, 皇, 神, 荒, 項, 项, 高, 黃氏, 黄姓, 黄氏, 강, 고, 항, 홍, and 황