Susan Alice Bennett is an American voice actress and a former backup singer for Roy Orbison and Burt Bacharach. She is best known as female American voice of Apple's Siri personal assistant, since the service was introduced on the iPhone 4S on October 4, 2011. She was the voice of Siri until the iOS 7 update was released on September 18, 2013.

Siri is the digital assistant that is part of Apple Inc.'s iOS, iPadOS, watchOS, macOS, tvOS, audioOS, and visionOS operating systems. It uses voice queries, gesture based control, focus-tracking and a natural-language user interface to answer questions, make recommendations, and perform actions by delegating requests to a set of Internet services. With continued use, it adapts to users' individual language usages, searches, and preferences, returning individualized results.