The 2006 preseason Texas high school baseball rankings as determined by the Texas High School Baseball Coaches Association and Inside Prep Baseball Magazine:

—CLASS 5A: 1, The Woodlands. 2, Cypress Falls. 3, Humble Kingwood. 4, Mansfield. 5, Houston Memorial. 6, Tomball. 7, Carrollton Newman Smith. 8, Allen. 9, Cypress Fairbanks. 10, Houston Bellaire. 11, Smithson Valley. 12, Arlington Martin. 13, La Porte. 14, Midland. 15, Coppell. 16, Houston Westside. 17, Deer Park. 18, Corpus Christi Ray. 19, Flower Mound Marcus. 20, Keller. 21, Humble. 22, Buda Hays. 23, Corpus Christi Moody. 24, Rockwall. 25, Round Rock Stony Point.