Karl Schneider may refer to:

• Karl Schneider (cricketer) (1905–1928), Australian cricketer
• Karl Schneider (activist) (1869–1940), German ophthalmologist, activist, resistance fighter against Nazis
• Karl Schneider (Austrian footballer) (born 1902)
• Karl Schneider (Swiss footballer) (active 1899–1901), Swiss footballer
• Karl Max Schneider (1887–1955), East German zoologist
• Karl Schneider (German architect) (1892–1945), German architect
• Karl Schneider (Swiss architect) (1884–1959), Swiss architect
• Karl Schneider (art director) (1916–1996), German film set designer
• Karl Schneider (philologist) (1912–1998), German philologist