Princess Chulabhorn Science High School (Thai: โรงเรียนวิทยาศาสตร์จุฬาภรณราชวิทยาลัย; RTGS: Rongrian Witthayasat Chulaphon Ratchawitthayalai), also known as PCSHS, is the name given to a group of science coeducation boarding schools that was established by the Thai Ministry of Education to honor science-oriented Princess Chulabhorn in 1993 when she was 36 years old. PCSHS focuses on developing the talents of students in grades 7-12 (secondary and high school students) in science, mathematics, technology, and environment to support science and technology professionals in Thailand.