Gamaliel the Elder (/ɡəˈmeɪliəl, -ˈmɑː-, ˌɡæməˈliːəl/; also spelled Gamliel; Hebrew: רַבַּן גַּמְלִיאֵל הַזָּקֵן Rabban Gamliʾēl haz-Zāqēn; Koine Greek: Γαμαλιὴλ ὁ Πρεσβύτερος Gamaliēl ho Presbýteros), or Rabban Gamaliel I, was a leading authority in the Sanhedrin in the early first century CE. He was the son of Simeon ben Hillel and grandson of the great Jewish teacher Hillel the Elder. He fathered Simeon ben Gamliel, who was named for Gamaliel's father, and a daughter, who married a priest named Simon ben Nathanael.
In the Christian tradition, Gamaliel is recognized as a Pharisaic doctor of Jewish Law. Gamaliel was named as a member of the Sanhedrin in Acts 5 and the teacher of Paul the Apostle in Acts 22:3. Gamaliel encouraged his fellow Pharisees to show leniency to the apostles of Jesus in Acts 5:34.