What was the name of the synagogue leader whose dying daughter Jesus went to heal?

Answer: Jairus

Jairus, a synagogue leader, fell at Jesus' feet and begged him to come to his house because his daughter was dying.

“Just then a synagogue leader named Jairus came and fell at Jesus’ feet. He begged Him to come to his house, because his only daughter, who was about twelve, was dying. As Jesus went with him, the crowds pressed around Him,”— Luke 8:41-42 (BSB)