The London Beth Din (LBD) is the Ashkenazi Beth Din of the United Synagogue, the largest Ashkenazi synagogal body in London, England. In its capacity as Court of the Chief Rabbi, it is historically the supreme halakhic Authority for Ashkenazim in several Commonwealth countries and additionally is consulted by Batei Din throughout Europe. The current head (Rosh Beth Din) of the London Beth Din is Dayan Menachem Gelley, who joined the court in 1993 and was appointed to his current position in 2014, succeeding Chanoch Ehrentreu.