Kareha is a Japanese word meaning "dried leaves." It may refer to:
Koreisha mark, a mark put on Japanese cars to indicate that the driver is elderly, which also called "Kareha mark". Kareha (Shuffle!), a character in the Shuffle! video game series. Kareha, a popular 2channel-style anonymous board software package. Japanese name of a French song "Les Feuilles mortes". See Autumn Leaves (1945 song)