Isaiah J. Thompson (born April 29, 1997) is an American jazz pianist and composer. In 2023 he won the American Piano Awards.

Thompson was born on April 29, 1997, in West Orange, New Jersey, and attended the Montclair Kimberley Academy. At an early age, he began studying at the Calderone School of Music and later studied with Jazz House Kids, NJPAC Jazz for Teens and Jazz at Lincoln Center. He received his Bachelor's and Master's of Music degrees from The Juilliard School.