Cognomen Hongjun (Hongjun 
, 宏俊 , 泓君 ) , globally, is quite a rare last name. The last name Hongjun is characteristic of South Korea, where it is a rare surname, China, and Singapore. In absolute terms, it is commonest in China, South Korea, and Malaysia. More prevalently, Hongjun is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Hongjun | South Korea, China, United States, Malaysia, Indonesia |
| 洪骏, 宏俊, 泓君 | China |
Хонгжун, Хонгйун, Хонгюн, 哄军, 宏军, 宏君, 宏均, 宏峻, 宏浚, 宏濬, 宏珺, 宏琼, 宏竣, 宏筠, 宏軍, 宏郡, 宏钧, 宏駿, 宏骏, 弘俊, 弘军, 弘君, 弘均, 弘峻, 弘浚, 弘珺, 弘琼, 弘竣, 弘筠, 弘钧, 弘骏, 泓俊, 泓军, 泓均, 泓浚, 泓珺, 泓竣, 泓钧, 泓骏, 洪俊, 洪军, 洪君, 洪均, 洪峻, 洪捃, 洪浚, 洪珺, 洪琼, 洪竣, 洪筠, 洪軍, 洪郡, 洪钧, 烘军, 烘君, 烘均, 烘钧, 竑俊, 竑君, 竑均, 竑峻, 竑琼, 竑钧, 竤军, 紅俊, 紅军, 紅君, 紅均, 紅軍, 红俊, 红军, 红君, 红均, 红峻, 红珺, 红琼, 红竣, 红筠, 红菌, 红軍, 红郡, 红钧, 红骏, 纮骏, 翃珺, 荭军, 荭君, 蕻君, 虹俊, 虹军, 虹君, 虹均, 虹峻, 虹珺, 虹琼, 虹畯, 虹竣, 虹筠, 虹莙, 虹郡, 虹钧, 虹骏, 轰军, 闳竣, 闳钧, 鴻俊, 鴻均, 鸿俊, 鸿军, 鸿君, 鸿均, 鸿寯, 鸿峻, 鸿浚, 鸿珺, 鸿琼, 鸿竣, 鸿筠, 鸿郡, 鸿鈞, 鸿钧, 鸿骏, 鸿麇, 黉君, and 홍준