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.

[6] The PCSHS students receive scholarships from the government for study, food, accommodation, etc.

The symbolic colors are blue, representing the Thai monarchy, a security-oriented, strict disciplinarian.

And red-orange, which represents the traditional Thai color for Thursday, the day that Princess Chulabhorn Walailak was born (4 July 1957).