Anderson Luís de Souza (born 27 August 1977), known as Deco, is a retired Portuguese footballer who played as an attacking midfielder.

Deco or DECO may refer to

• Deco, the nickname of Portuguese footballer Anderson Luís de Souza
• DECO Cassette System, a software loader by Data East
• DECO Online, a computer game
• Deco Refreshments, Inc., a restaurant chain
• Deco Vs. Deco, a DVD by the Japanese rock band Maximum the Hormone
• Art Deco, an international art design movement from 1925 until the 1940s
• Data East Corporation, a software company
• Demos Commander, an orthodox file manager for Unix-like systems
• Decompression in scuba diving slang
• "Art Deco", a 2015 song by Lana Del Rey from the album Honeymoon