Ibrahim Awad, 21, was hit in the head when clashes broke out after prayers in Beit Ummar, popular committee spokesman Yousef Abu Maria said.
Abu Maria said Palestinians were protesting settlers’ continuous violations in Hebron.
An Israeli military spokeswoman did not immediately return a call seeking comment.
Earlier Friday, settlers uprooted dozens of olive trees and scrawled graffiti near al-Tawani village south of Hebron.
Witnesses told AFP that approximately 80 olive trees were uprooted in the village.
Israeli police spokeswoman Luba Samri said “police received a report about the damaging of some 62 Palestinian-owned olive trees” in the area.
She also noted that “slogans such as ‘price tag’ and ‘mutual guarantee’ were scrawled nearby.”
“Price tag” is a euphemism for hate crimes, primarily committed against Palestinians by Israeli extremists.
The attacks began in response to Israeli government moves to dismantle unauthorized settler outposts or in retaliation to Palestinians after attacks against settlers, but over the past 18 months have also targeted Christian institutions and even the Israeli military.
The perpetrators of such crimes are rarely caught.