The Diocese of Galway is a Roman Catholic diocese located in the west of Ireland. It was established in the 12th century and is part of the Province of Tuam. The diocese serves the spiritual needs of the local community and oversees various parishes in the region. The cathedral of the diocese, known as Galway Cathedral, was completed in 1965 and is a prominent landmark in the city. The diocese is led by a bishop, who is responsible for the administration of the church and the pastoral care of its members.