Future Shock is a 1970 book by American futurist Alvin Toffler, written together with his spouse Adelaide Farrell, in which the authors define the term "future shock" as a certain psychological state of individuals and entire societies. The shortest definition for the term in the book is a personal perception of "too much change in too short a period of time". The book, which became an international bestseller, has sold over 6 million copies and has been widely translated.

Alvin Eugene Toffler was an American writer, futurist, and businessman known for his works discussing modern technologies, including the digital revolution and the communication revolution, with emphasis on their effects on cultures worldwide. He is regarded as one of the world's outstanding futurists.