Foreign Language Specialized School (Vietnamese: Trường Trung học phổ thông chuyên Ngoại ngữ), commonly known as FLSS or CNN, is a national public magnet high school/university-preparatory school in Hanoi, Vietnam.

Currently, FLSS is Vietnam's only high school specialized in teaching foreign languages (including Chinese, English, French, German, Japanese, Korean and Russian).

Similar to other national magnet high schools, FLSS is recognized for its strong academic programs and its vast majority (98-100%) of graduates attending the most prestigious universities in Vietnam and abroad.

[4] Admission to FLSS is by competitive examination only, which until 2016 consisted of three subjects: specialized foreign language (self-declared by examinees), mathematics, and literature.

Since the academic year 2008-2009, two foreign language courses (one specialized and one elective) have been required for every FLSS student.