Crystal Springs Uplands School is an independent, coeducational, college prep day school in Hillsborough, California, United States. Founded in 1952, the school includes grades 6–12, with approximately 220 students in the middle school and 320 students in the upper school.

In late 2007, The Wall Street Journal identified Crystal Springs Uplands School as one of the world's top 50 schools for its success in preparing students to enter top American universities.