Last name Hongyun (红云 
, 洪云 , Hongyun 
) , across the world, is a common cognomen. The cognomen Hongyun is habitual in China, where it is quite a rare surname, and Malaysia, where it is a very rare surname. More prevalently, Hongyun is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 洪云, 红云, 宏运 | China |
| Hongyun | Indonesia, China, South Korea, Taiwan, United States |
Гонгюн, Хонгюн, 哄云, 宏云, 宏允, 宏匀, 宏昀, 宏耘, 宏芸, 宏蕴, 宏贇, 宏赟, 宏運, 宏陨, 宏韫, 宏韵, 弘云, 弘允, 弘昀, 弘沄, 弘耘, 弘芸, 弘赟, 弘运, 弘鋆, 弘韵, 弘韻, 泓云, 泓允, 泓匀, 泓昀, 泓沄, 泓澐, 泓芸, 泓蕴, 泓贇, 泓赟, 泓运, 泓鋆, 泓雲, 泓韫, 泓韵, 洪允, 洪匀, 洪昀, 洪耘, 洪芸, 洪蕴, 洪贇, 洪赟, 洪运, 洪鋆, 洪陨, 洪雲, 洪韫, 洪韵, 浤云, 烘云, 竑赟, 紅云, 紅芸, 紅運, 紅雲, 紘緷, 红允, 红匀, 红恽, 红昀, 红晕, 红澐, 红缊, 红耘, 红芸, 红蕴, 红贇, 红赟, 红运, 红郓, 红郧, 红鋆, 红雲, 红韫, 红韵, 翃芸, 翃赟, 葒暈, 蕻云, 虹云, 虹允, 虹匀, 虹妘, 虹昀, 虹沄, 虹澐, 虹耘, 虹芸, 虹蕴, 虹贇, 虹赟, 虹运, 虹鋆, 虹雲, 虹韵, 轰云, 闳云, 鴻云, 鴻運, 鸿云, 鸿允, 鸿昀, 鸿晕, 鸿芸, 鸿蕴, 鸿贇, 鸿赟, 鸿运, 鸿鋆, 鸿雲, 鸿韫, 鸿韵, 黉贇, and 홍윤