- Crazy is a general term used to describe people with a mental illness.
- Crazy is a magazine, an imitator of MAD Magazine published in the 1970s and 1980s by Marvel Comics.
- "Crazy" is a song performed by Aerosmith, notable for its music video starring Alicia Silverstone and Liv Tyler.
- "Crazy" is a song written by Willie Nelson, and was most notably sung by Patsy Cline, her third country hit song.
- "Crazy" is a song performed by Seal. It was a Top 10 single in 1991.
- "(You Drive Me) Crazy" is the third single from Britney Spears' debut album ...Baby One More Time released in 1999.
- Crazy is a German coming-of-age film.