Adam Cheyer (born c. 1966) is a co-founder of Siri Inc. and formerly a director of engineering in the iPhone group at Apple.

After graduating in 1984, Cheyer earned a bachelor's degree in computer science from Brandeis University in 1988, and a master's degree in computer science and artificial intelligence from UCLA in 1993.

[6] Cheyer was also a member of the founding team at Change.org[7] and a founder of Sentient Technologies (formerly Genetic Finance).

[8][9] Adam left the Siri team in 2012[10] and founded Viv Labs, which was acquired by Samsung in 2016.

[11][12] After leaving Samsung, Adam Cheyer co-founded GamePlanner.AI with Siamak Hodjat, which was acquired by Airbnb in late 2023.