Jett is an English name, a variant spelling of Jet. It comes from the word jet, the black gemstone behind the term jet-black, and is also associated with jet aircraft. It is pronounced like the word jet (/dʒɛt/).
In fiction, Jett Rink is the ranch hand turned oil tycoon in Edna Ferber's novel Giant, played by James Dean in the 1956 film version. Well-known bearers today include Australian motocross racer Jett Lawrence, a multiple AMA champion, and Canadian actor Jett Klyne of WandaVision.
In the United States, Jett was rare for most of the 20th century and first entered the top 1,000 boys' names in 1999, at No. 796. It rose through the 2000s and 2010s and peaked at 161st in 2024. In 2025 it slipped to 169th, with 2,167 boys given the name.
| Jelte Steven Tuinstra, known as Jett Rebel, is a Dutch singer-songwriter, composer, multi-instrumentalist, and producer who performs solo and with various live band lineups in the Dutch music scene. |
| Jett Lawrence is an Australian motocross racer and multiple time AMA champion in Supercross, Motocross, and SMX across both 250cc and 450cc classes. |
| Jett Noland is an American racing driver who has raced part time in the NASCAR Truck and ARCA Menards Series with Niece Motorsports, and also in Stadium Super Trucks, super late models, and the Trans Am Series. |
| Canadian goalie Jett Alexander, a University of Toronto Varsity Blues player, briefly debuted for the Toronto Maple Leafs on April 8 2023 and said having his friend Ross Krieger in the stands meant more than the NHL dream. |
| Jett Prescott is an American singer-songwriter and entrepreneur, founder of PennyFly Entertainment, recognized by Music Connection and The Knot, and a Rolling Stone expert panelist. |
| Jett Kenny is an Australian ironman athlete, model, and television personality. |
| Jett Klyne is a Canadian actor best known for portraying Tommy Maximoff in WandaVision and Doctor Strange in the Multiverse of Madness. |