The diocesan coat of arms was designed by Bishop Louis J. Reicher at the time the diocese was established in 1948.
The custom of having a coat of arms goes back to medieval times when rulers, officials, large land owners, etc., would have the shields of their soldiers emblazoned with a design symbolizing the family. Since the diocese and its city take the name of Stephen F. Austin, Bishop Reicher chose to utilize part of the Austin family coat of arms. This consisted of a horizontal bar with three crosses between one chevronel line above and another at the base.
The star above has a double significance. It symbolizes both the Lone Star of Texas and our Blessed Lady under the title Stella Maris, “Star of the Sea.”
The rose on the lower chevronel reminds us of the shield of the Galveston Diocese, from which most of the Austin Diocese was taken in 1947. This rose symbolizes the Blessed Virgin Mary under the title of Rosa Mystica, “Mystical Rose” and is again a symbol of new birth as it was at the beginning of the church nearly two thousand years ago.
The wavy line symbolizes the Colorado River, which passes through the center of the diocese, and the golden heart symbolizes St. Augustine (Austin) of Hippo. The transfixed arrows, one descending and one ascending, represent St. Austin’s love for God and God’s love for St. Austin as a great doctor of the church.