Red Snow or red snow may refer to:

• Red Snow, a British thermonuclear weapon (1958-1972)
• "Red Snow" (The Twilight Zone), a 1986 television episode which starred George Dzundza and Victoria Tennant
• Red snow, a type of snow algae
• Watermelon snow, reddish snow caused by above type of snow algae
• 30 Days of Night: Red Snow, a prequel to the comic 30 Days of Night
• redsn0w, the jailbreak of the second generation version of the iPod Touch by the popular iPhone Dev Team
• Red Snow, a manga novel by Susumu Katsumata
• Red Snow (1952 film), American film starring Guy Madison and Philip Ahn
• Red Snow (2003 film), Chinese film by Zhang Jianya
• Red Snow (2019 film), Canadian film by Marie Clements
• Red Snow (2021 film), American film starring Vernon Wells