ChucK is a concurrent, strongly timed audio programming language for real-time synthesis, composition, and performance, which runs on Linux, Mac OS X, Microsoft Windows, and iOS. It is designed to favor readability and flexibility for the programmer over other considerations such as raw performance. It natively supports deterministic concurrency and multiple, simultaneous, dynamic control rates. Another key feature is the ability to live code; adding, removing, and modifying code on the fly, while the program is running, without stopping or restarting. It has a highly precise timing/concurrency model, allowing for arbitrarily fine granularity. It offers composers and researchers a powerful and flexible programming tool for building and experimenting with complex audio synthesis programs, and real-time interactive control.

Chuck is a masculine given name or a nickname for Charles. It may refer to:

• Chuck Berry (born 1926), American rock and roll musician
• Chuck Close (born 1940), American painter and photographer
• Chuck Comeau (born 1979), Canadian drummer
• Chuck D (born 1960), stage name of Carlton Douglas Ridenhour, American rapper
• Chuck Garric, rock bassist of Alice Cooper.
• Chuck Leavell (born 1952), American pianist and keyboardist
• Chuck Lorre (born 1952), American television writer, director, producer, composer, and production manager
• Chuck Mangione (born 1940), American flugelhorn player and composer
• Chuck Norris (born 1940), American martial artist, actor and media personality
• Chuck Palahniuk (born 1962), American novelist and freelance journalist
• Chuck Schuldiner (1967–2001), American singer, songwriter, and guitarist
• Chuck Woolery (born 1941), American actor, singer and game show host