Paul Jeffrey (April 8, 1933 – March 20, 2015) was an American jazz tenor saxophonist, arranger, and educator. He was a member of Thelonious Monk‘s regular group from 1970–1975, and also worked extensively with other musicians such as Charles Mingus, Dizzy Gillespie, Clark Terry, Lionel Hampton and B.B. King.

Born in New York City, Jeffrey attended Kingston High School. After graduating in 1951, he completed a Bachelor of Science degree in music education at Ithaca College in 1955. He spent the late 1950s touring with bands led by Illinois Jacquet, Elmo Hope, Big Maybelle, and Wynonie Harris. From 1960 to 1961, Jeffrey toured the US with B.B. King, after which he worked as a freelance musician in the New York City area and toured with bands led by Howard McGhee, Clark Terry, and Dizzy Gillespie.

Jeffrey’s first studio work as a leader was in 1968, when he recorded the album Electrifying Sounds for Savoy Records. He toured with the Count Basie Orchestra before beginning his associations with Thelonious Monk and Charles Mingus. He first joined Monk’s quartet for a multi-day run at the Frog & Nightgown club in Raleigh, North Carolina, in May 1970.