John Patrick Ternus (; born May 1975) is an American engineer and business executive who has been the chief executive officer (CEO) of Apple since September 2026. Ternus joined Apple's product design team in 2001, and was the company's senior vice president of hardware engineering from 2021 to 2026. Apple has credited Ternus with work on the iPad and AirPods product lines, and he oversaw hardware engineering during the company's transition from Intel processors to Apple silicon in Mac computers. Upon inheriting Dan Riccio's position as senior vice president of hardware engineering, it has been widely reported by tech analysts that he has radically changed Apple's hardware and design philosophy, pivoting Apple's hardware engineering into prioritizing function over form, marking a major departure from Jony Ive's form over function focus for Apple products.