Where does the Camino de Santiago start in Barcelona?

Barcelona Travel Guide, Where does the Camino de Santiago start in
Barcelona?. The Church of Sant Jaume.

Located on calle Ferrán, ( Rambla´s area), opposite the old jewish
quarters. During the medieval times it was a meeting point for converted
jews, a church that the rest of christians tried to avoid.

Once inside the church check out the altar , a reproduction of the Pilgrim
of Santiago with the shell and walking stick. The church is considered the
starting point in Barcelona for the Camino de Santiago.