Monsignor Crescente Errázuriz Valdivieso (November 18, 1839 – July 5, 1931) was a Chilean Dominican friar and prelate of the Catholic Church who served as the archbishop of Santiago de Chile from 1919 to his death in 1931.
In 1874 founded a new magazine called El Estandarte Católico (Catholic Banner) in order to defend the church position and respond to the liberal attacks.
One year earlier, he had also become a member of the Faculty of Theology of the University of Chile, teaching canon law, and writing the standard text on the subject.
He was also given the gold medal of the Historical and Geographical Society of Chile in 1912 and became the president of the Chilean Academy of History in 1914.
Pope Benedict XV named him on December 30, 1918, adopting the motto: Cruz et Evangelium ecce arma mea (Latin for 'The Cross and the Gospel are my weapons').