The school seal is the insignia of the San Lorenzo College of Davao, Inc.

Details in the Central Design:

The SHINING SUN, PHOENIX and the BOOK are the symbols of transformed, inspired and enlightened leadership.

The text: "YO HAGA MUERO MAS BIEN MIL LOS MUERTOS QUE RENUNCIAR MI FE" is translated "I would rather die a thousand deaths than to renounce my faith" - - the famous saying of Saint Lorenzo Ruiz.

The THREE STARS symbolizes Faith, Love, and Freedom -- the embracing values of San Lorenzo Ruiz martyrdom.

The FAMILY is a basic value in itself, a seedbed of greater cooperation in the formation of Christian values and principles.