Lazar Lazarević (28 December 1838 – 17 September 1919) was a Herzegovinian Croat Catholic priest who served as the bishop's deputy (provicar) for the Diocese of Trebinje-Mrkan from 1867, and as spiritual administrator of the Diocese of Mostar-Duvno and Trebinje-Mrkan from 1910 until 1912. Lazarević was a supporter of the independence of the Diocese of Trebinje-Mrkan from the administration of the neighboring dioceses.