From which tribe was Caleb son of Jephunneh, one of the twelve spies?

Answer: Judah

Numbers 13:6 lists Caleb son of Jephunneh as the spy from the tribe of Judah; Hoshea (Joshua) represented Ephraim.

“from the tribe of Judah, Caleb son of Jephunneh;”— Numbers 13:6 (BSB)