A cuckoo's nest is the nest of a cuckoo.

Cuckoo's nest may also refer to:

• "Cuckoo's Nest" (Roud 1506), a traditional bawdy song, often played as an instrumental

• "Cuckoo's Nest" (CSI: NY), an episode of CSI: NY
• The Korean name of the South Korean television series Two Mothers (뻐꾸기 둥지)

• Cuckoo's Nest (nightclub), Costa Mesa, California, U.S.
• Cuckoos Nest railway station, West Yorkshire, Northern England
• Cuckoo's Nest Studio, an animation studio in Taiwan

• One Flew Over the Cuckoo's Nest (disambiguation)
• Cuckoo's egg (disambiguation)