Klang High School or classically known as the High School Klang (Abbreviation: HSK or STK; Bahasa Malaysia: SMK Tinggi Klang; simplified Chinese: 巴生高等中学; pinyin: Bā Shēng Gāo Děng Zhong Xué, Tamil: கிள்ளான் உயர்நிலை பள்ளி) is a Malaysian national secondary school located at Jalan Meru about one km away from the Klang city centre in Selangor, Malaysia. It is situated beside the Klang District Education Office. It is a male-only school from Form 1 to Form 5. At the Sixth Form level, where students take their STPM, the classes have both male and female. Klang High School was one of the top-performing schools in Selangor during the British governance and until today, it is still among the respected schools in Selangor. Since its establishment, the school has produced numerous talents serving for the nation and overseas. In Klang, it is one of the most reputable schools known among Klang people.