Iceland: framhaldsskóli (menntaskóli, iðnskóli, fjölbrautaskóli) from 11-13 Grade. After elementary school (grades 1 through 10), students have the option of entering a framhaldsskóli (lit. continuation school), which will take at least 3 years.
Indonesia: sekolah menengah atas (SMA) (lit. "upper middle school"), sekolah menengah pertama (SMP) (lit. "first middle school"), sekolah menengah kejuruan (SMK) (vocational school, lit. "middle vocational school")
Israel: Bet Sefer Tichon (בית ספר תיכון) (literally middle school, but in reality grades 9-12)
Italy: scuola secondaria di primo grado (3 years) + scuola secondaria di secondo grado (5 years): Liceo, Istituto Tecnico and Istituto professionale
Japan: chūgakkō (中学校; literally middle school), kōtōgakkō (高等学校; literally high school), chūtōkyōikugakkō (中等教育学校; Secondary School) – In the pre-Meiji educational system, the equivalent was called "chūsei"
Philippines: mataas na paaralan; can be divided into "junior high school" (grades 7–10) and "senior high school" (grades 11–12)
Poland: liceum (grades 9–12), technikum (technical secondary school)
Portugal: 2º Ciclo do Ensino Básico (5th and 6th grades), 3º Ciclo do Ensino Básico (7th to 9th grades), and Ensino Secundário, Liceu (10th to 12th grades)
Singapore: Secondary school (May be referred to as High School or in other official languages of Singapore)
South Korea: 중고등학교(中高等學校・Chung'godŭnghakkyo), 중등교육 (Chungdŭng'gyoyuk; literally middle education), comprising 중학교 (Chunghakkyo; the Lower secondary school, years 7–9, though referred to as "middle school grades 1–3") and 고등학교 (Kodŭnghakkyo; the Upper secondary school, years 10–12, though referred to as "high school grades 1–3")
Spain: educación secundaria, composed of two cycles: E.S.O. (Educación Secundaria Obligatoria, compulsory secondary education, 4 years, 7th to 10th grade) and bachillerato (non-compulsory secondary education, 2 years, 11th and 12th grade); formerly (for those born until 31 December 1983), primary education comprised up to the 8th grade and the secondary education was composed of two non-compulsory cycles: B.U.P. (Bachillerato Unificado Polivalente, 3 years, 9th to 11th grade) and C.O.U. (Curso de Orientación Universitaria, 1 year, 12th grade)
Sri Lanka: junior secondary school, senior secondary school
United States: High school (North America) (usually grades 9–12 but sometimes 10–12, it is also called senior high school) is always considered secondary education; junior high school or intermediate school or middle school (6–8, 7–8, 6–9, 7–9, or other variations) are sometimes considered secondary education.
Uruguay: Liceo or Secundaria (3 years of compulsory education: Ciclo Básico; and 3 years of specialization: Bachillerato Diversificado, into: Humanities (Law or Economics), Biology (Medicine or Agronomy), Science (Engineering or Architecture), and Art
Vietnam: Trung học cơ sở (abbreviated THCS, lit. "basic middle school", equivalent to junior high school in the U.S.); trung học phổ thông (abbr. THPT, lit. "general middle school", equivalent to senior high school in the U.S.)