Isaiah Ju'mar Jackson (born January 10, 2002) is an American professional basketball player for the Los Angeles Clippers of the National Basketball Association (NBA). He played college basketball for the Kentucky Wildcats. He was selected by the Los Angeles Lakers in the first round of the 2021 NBA draft before being traded to the Indiana Pacers.
As a freshman, Jackson played basketball for Lutheran Northwest High School in Rochester Hills, Michigan. He moved to Old Redford Academy in Detroit for his sophomore season. As a junior, Jackson competed for SPIRE Academy in Geneva, Ohio alongside LaMelo Ball and his Old Redford teammate Rocket Watts. He averaged 14.9 points and 10.4 rebounds per game. For his senior season, he transferred to Waterford Mott High School in Waterford, Michigan. Jackson averaged 19.1 points, 13 rebounds and 7.7 blocks per game as a senior. He was named to the Jordan Brand Classic roster.
Considered a five-star recruit by Rivals, Jackson committed to playing college basketball for Kentucky over offers from Alabama and Syracuse.
On December 1, 2020, Jackson recorded seven points, 12 rebounds and a career-high eight blocks in a 65âÂÂ62 loss to seventh-ranked Kansas at the Champions Classic. He had the most single-game blocks by a Kentucky player since Willie Cauley-Stein in 2013. As a freshman, Jackson averaged 8.4 points, 6.6 rebounds and an SEC-high 2.6 blocks per game, earning SEC All-Defensive and All-Freshman Team honors. On March 17, 2021, he declared for the 2021 NBA draft while maintaining his college eligibility. He later signed with an agent, forgoing his remaining eligibility.
Jackson was selected with the 22nd pick of the 2021 NBA draft by the Los Angeles Lakers and then traded to the Indiana Pacers. On October 23, he made his NBA debut, scoring one point in two minutes of action during a 102âÂÂ91 overtime win over the Miami Heat. On January 31, 2022, Jackson logged a career-high 26 points, alongside ten rebounds and two blocks, in a 122âÂÂ116 win over the Los Angeles Clippers. He made 36 appearances (including 15 starts) for Indiana during his rookie season, averaging 8.3 points, 4.1 rebounds, and 0.3 assists.
Jackson played in 63 contests (including 12 starts) for the Pacers during the 2022âÂÂ23 NBA season, averaging 7.2 points, 4.5 rebounds, and 0.8 assists. He made 59 appearances (three starts) for Indiana in the 2023âÂÂ24 season, logging averages of 6.5 points, 4.0 rebounds, and 0.8 assists.
Jackson tore his Achilles tendon on November 1, 2024 against the New Orleans Pelicans, ending his season. Prior to the injury, he had averaged 7.0 points, 5.6 rebounds, and 1.0 assist over five appearances (one start).
On July 11, 2025, Jackson re-signed with the Pacers on a three-year, $21 million contract. Jackson made 38 appearances (14 starts) for the Pacers during the 2025âÂÂ26 season, recording averages of 6.4 points, 5.6 rebounds, and 0.8 assists.
On February 5, 2026, Jackson, Bennedict Mathurin, two first-round picks and one second-round pick were traded to the Los Angeles Clippers in exchange for Ivica Zubac and Kobe Brown.
|- | style="text-align:left;"| | style="text-align:left;"| Indiana | 36 || 15 || 15.0 || .563 || .313 || .682 || 4.1 || .3 || .7 || 1.4 || 8.3 |- | style="text-align:left;"| | style="text-align:left;"| Indiana | 63 || 12 || 16.5 || .563 || .143 || .651 || 4.5 || .8 || .5 || 1.5 || 7.2 |- | style="text-align:left;"| | style="text-align:left;"| Indiana | 59 || 3 || 13.1 || .665 || .000 || .716 || 4.0 || .8 || .6 || 1.0 || 6.5 |- | style="text-align:left;"| | style="text-align:left;"| Indiana | 5 || 1 || 16.8 || .609 || || .500 || 5.0 || 1.0 || .6 || 1.6 || 7.0 |- class="sortbottom" | style="text-align:center;" colspan="2"|Career | 164 || 31 || 14.9 || .595 || .206 || .671 || 4.3 || .7 || .6 || 1.3 || 7.1
|- | style="text-align:left;"|2024 | style="text-align:left;"|Indiana | 15 || 0 || 10.2 || .535 || || .611 || 3.2 || .5 || .2 || .9 || 3.8 |- class="sortbottom" | style="text-align:center;" colspan="2"|Career | 15 || 0 || 10.2 || .535 || â || .611 || 3.2 || .5 || .2 || .9 || 3.8
|- | style="text-align:left;"| 2020âÂÂ21 | style="text-align:left;"| Kentucky | 25 || 18 || 20.8 || .540 || .000 || .700 || 6.6 || .7 || .8 || 2.6 || 8.4