CoCoon is a business incubator and resource platform for Hong Kong startups, gathering several hundred entrepreneurs working in various industries. It provides shared office space to carefully selected startup companies, offers support and networks of potential partners and investors, and organizes regular startup events. CoCoon is privately owned and run as a social enterprise.

Cocoon may refer to:

• Cocoon (silk), a pupal casing made by moth caterpillars and other insect larvae
• Apache Cocoon, web development software
• Cocoon (film), a 1985 science fiction film
  • , 1988 sequel to Cocoon
• Kakuna, a species of Pokémon, known as Cocoon in the original Japanese version
• "Cocoon", a short story by Greg Egan in his collection Luminous
• Cocoon, a fictional world in the video game Final Fantasy XIII
• "Cocoon", an episode of Hawaii Five-O

Batteries Not Included (styled *batteries not included) is a 1987 family-comic science fiction film directed by Matthew Robbins about small extraterrestrial living space ships that save an apartment block under threat from property development. The story was originally intended to be featured in the TV series Amazing Stories, but executive producer Steven Spielberg liked the idea so much that he decided to make it a theatrical release. It is also notable for being the feature film screenwriting debut of Brad Bird, who was one of the writers and producers of the movie.