The Southwest Preparatory Conference (SPC) is an athletic conference for certain private high schools in Texas and Oklahoma. It is composed of the following schools:
All Saints' Episcopal School in Fort Worth, TexasCasady School in Oklahoma City, OklahomaCistercian Preparatory School in Irving, TexasEpiscopal School of Dallas in Dallas, TexasEpiscopal High School in Bellaire, TexasFort Worth Country Day School in Fort Worth, TexasGreenhill School in Addison, TexasHouston Christian High School in Houston, TexasThe John Cooper School in The Woodlands, TexasThe Kinkaid School in Houston, TexasThe Oakridge School in Arlington, TexasSaint Mary's Hall in San Antonio, TexasSt. Andrew's Episcopal School in Austin, TexasSt. John's School in Houston, TexasSt. Mark's School of Texas in Dallas, TexasSt. Stephen's Episcopal School in Austin, TexasTrinity Valley School in Fort Worth, Texas