Aurelio Bacciarini (8 November 1873 – 27 June 1935) was a Swiss Roman Catholic who served as the interim administrator of the Diocese of Lugano. He was a professed member of the Servants of Charity - also known as the Guanellians - and was also the founder of the Secular Institute of the Company of Saint Therese of the Child Jesus. He became known in his diocese as the "Apostle of the Sacred Heart".