Unsafe at Any Speed: The Designed-In Dangers of the American Automobile

Unsafe at Any Speed: The Designed-In Dangers of the American Automobile is a non-fiction book by consumer advocate Ralph Nader, first published in 1965. Its central theme is that car manufacturers resisted the introduction of safety features (such as seat belts), and that they were generally reluctant to spend money on improving safety. The work contains substantial references and material from industry insiders. It was a best seller in non-fiction in 1966.

The book resulted in the creation of the United States Department of Transportation in 1966 and the predecessor agencies of the National Highway Traffic Safety Administration in 1970.