Jahlani Karl Tavai (born September 28, 1996) is an American professional football linebacker. He is the younger brother of J. R. Tavai and older brother of Justus Tavai. He played college football for the Hawaii Rainbow Warriors.
Tavai was selected by the Detroit Lions in the second round (43rd overall) of the 2019 NFL draft. He played in 15 games in six starts, recording 58 tackles, two sacks, a forced fumble, two passes defensed and an interception. He suffered a shoulder injury in Week 16 and was placed on injured reserve on December 23, 2019.
On August 31, 2021, Tavai was waived by the Lions as part of the final pre-season roster cuts.
After being released by Detroit, on September 1, 2021, the New England Patriots signed Tavai to their practice squad, eventually activating him, while reuniting with Matt Patricia, his former head coach in Detroit. He was promoted to the active roster on October 13.
Tavai began the 2022 season as a backup linebacker. He was named a starter in Week 5 and remained there the rest of the season. On November 29, 2022, Tavai signed a two-year, $4.4 million contract extension with the Patriots. He finished the season with 69 tackles, 1.5 sacks, and two passes defensed.
On July 2, 2024, Tavai signed a three-year contract extension with the Patriots worth $15 million. He played in 17 games (16 starts) for New England, recording one interception, five pass deflections, one sack, and 115 combined tackles.
Tavai began the 2025 season on injured reserve after suffering an undisclosed injury. On October 4, 2025, Tavai was activated ahead of New England's Week 5 matchup against the Buffalo Bills. He started for New England in Super Bowl LX, a 29âÂÂ13 loss to the Seattle Seahawks.
On March 11, 2026, Tavai was released by the Patriots.
In December 2025, Tavai's partner Kalei Mau was in a six-day coma due to a severe infection, which ultimately resulted in the death of their unborn daughter.