Lunacy

Lunacy may refer to:


 * Lunacy, the condition suffered by a lunatic, now used only informally
 * Lunacy (film), a 2005 Jan Švankmajer film
 * Lunacy (video game), a video game for the Sega Saturn video game console
 * Luna Sea, a Japanese rock band originally named Lunacy
 * Lunacy (album), their 2000 album
 * The following of the Roman goddess Luna, a variation of the Greek goddess Selene
 * Lunacy (FIRST), the name of the FIRST Robotics Competition 2009 game
 * Luna-C (born 1973), British DJ and record producer