The Tecate Divide is a mountain ridge in southeastern San Diego County, California, running in a north-south direction on the southeast fringe of the Cuyamaca Mountains. It reaches an altitude of 4,239 feet (1,292 m), and passes between the towns of Live Oak Springs to the west and Boulevard, California on its eastern slope.
The divide is crossed by Interstate 8 at an altitude of 4,140 feet (1,260 m). Together with Laguna Summit and Crestwood Summit, this pass (also called the Tecate Divide) forms the easternmost of the three high points of Interstate 8 as it passes through the Cuyamaca Mountains.
The name "Tecate" is used for several other place names in southeastern San Diego County and across the border in Mexico, most notably for the city of Tecate.