Kieft with the Tampa Bay Buccaneers in 2026 | |||||||||||
| No. 41 – Tampa Bay Buccaneers | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Position | Tight end | ||||||||||
Roster status | Active | ||||||||||
| Personal information | |||||||||||
| Born | January 20, 1998 Sioux Center, Iowa, U.S. | ||||||||||
Listed height | 6 ft 5 in (1.96 m) | ||||||||||
Listed weight | 265 lb (120 kg) | ||||||||||
| Career information | |||||||||||
| High school | Sioux Center (IA) | ||||||||||
| College | Minnesota (2016–2021) | ||||||||||
| NFL draft | 2022: 6th round, 218th overall pick | ||||||||||
| Career history | |||||||||||
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| Career NFL statistics as of Week 7, 2026 | |||||||||||
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Ko Jason Kieft (born January 20, 1998) is an American professional football tight end for the Tampa Bay Buccaneers of the National Football League (NFL). He played college football for the Minnesota Golden Gophers.
| Height | Weight | Arm length | Hand span | Wingspan | 40-yard dash | 10-yard split | 20-yard split | 20-yard shuttle | Three-cone drill | Vertical jump | Broad jump | Bench press |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 6 ft 4+3⁄8 in (1.94 m) | 259 lb (117 kg) | 33 in (0.84 m) | 9+1⁄2 in (0.24 m) | 6 ft 7+3⁄4 in (2.03 m) | 4.98 s | 1.80 s | 2.89 s | 4.53 s | 7.07 s | 32.0 in (0.81 m) | 9 ft 3 in (2.82 m) | 21 reps |
| All values from Pro Day | ||||||||||||
Kieft was selected by the Tampa Bay Buccaneers in the sixth round, 218th overall, in the 2022 NFL draft. In Week 4 against the Kansas City Chiefs, Kieft recorded a 19–yard gain on a pass from Tom Brady for his first career reception. As a rookie, he had seven receptions for 80 yards and a touchdown; he appeared in 17 games and started 12. In the 2023 season, Kieft appeared in 16 games and started six. He had a receiving touchdown against the Green Bay Packers in Week 15. In the 2024 season, Kieft appeared in all 17 games and started one. A majority of his production came on special teams.
Kieft began the 2025 season as one of Tampa Bay's reserve tight ends. He suffered a leg injury in Week 3 against the New York Jets, and was placed on season-ending injured reserve on September 23, 2025.
On March 13, 2026, Kieft re-signed with the Buccaneers on a one-year, $1.65 million contract.
Kieft's first name is his legal name, not a nickname. “Ko” is a derivative of “Jakobus,” the name of a great-grandfather who immigrated to the United States from the Netherlands.