Liu Hong may refer to:

• Emperor Houshao of Han (died 180 BC), personal name Liu Hong (劉弘), Western Han emperor
• Liu Hong (astronomer) (劉洪; 129–210), Eastern Han astronomer
• Emperor Ling of Han (156–189), personal name Liu Hong (劉宏), Eastern Han emperor
• Liu Hong (minister) (fl. 189) (劉弘), minister of works in 2 months during the reign of Emperor Ling of Han
• Liu Hong (劉弘), Liu Bei's father
• Liu Hong (Jin dynasty) (劉弘; 236–306), courtesy name Shuhe (叔和), Western Jin official
• Liu Hong (Liu Song) (劉宏; 434–458), courtesy name Xiudu (休度), Liu Song dynasty prince
• Liu Hong (politician) (刘洪), former director of the National Bureau of Statistics of China
• Liu Hong (racewalker) (刘虹; born 1987), race walker
• Liu Hong (cyclist) (born 1969), cyclist