- Names for secondary schools by country
- Argentina: secundaria or polimodal, escuela secundaria
- Australia: high school, secondary college
- Austria: Gymnasium (Ober- & Unterstufe), Hauptschule, Höhere Bundeslehranstalt (HBLA), Höhere Technische Lehranstalt (HTL)
- Azerbaijan: orta məktəb
- Bangladesh: Maddhomik Biddalay or Secondary School (grades 6-10)
- Bahamas, The: junior high (grades 7–9), senior high (grades 10–12)
- Belgium: secundair onderwijs/école secondaire, humaniora/humanités
- Bolivia: educación primaria superior (grades 6–8) and educación secundaria, (grades 9–12)
- Bosnia and Herzegovina: srednja škola (literally middle school), gimnazija (gymnasium)
- Brazil: ensino médio (officially), segundo grau (formerly)
- Brunei: mostly sekolah menengah (English translation: secondary school), a few maktab (English translation: college)
- Bulgaria: cредно образование (grades 8–12)
- Canada: High school, junior high or middle school, secondary school, école secondaire, collegiate institute, polyvalente
- Chile: enseñanza media
- China: zhong xue (中学; literally, middle school), consisting of chu zhong (初中; 初级中学; literally low-level middle school) from grades 7 to 9 and gao zhong (高中; 高级中学; literally high-level middle school) from grades 10 to 12
- Colombia: bachillerato, segunda enseñanza (literally second learning)
- Croatia: srednja škola (literally middle school), gimnazija (gymnasium)
- Cyprus: Γυμνάσιο (gymnasium), Ενιαίο Λύκειο (Lyceum)
- Czech Republic: střední škola (literally middle school), gymnázium (gymnasium), střední odborné učiliště
- Denmark: gymnasium
- Dominican Republic: nivel medio, bachillerato
- Egypt: Thanawya Amma (ثانوية عامة), (public secondary certificate)
- Estonia: upper secondary school, gymnasium, Lyceum
- Fiji: high school, college
- Finland: lukio (Finn.) gymnasium (Swed.)
- France: collège (junior), lycée (senior)
- Germany: Gymnasium, Gesamtschule, Realschule, Hauptschule, Fachoberschule
- Greece: Γυμνάσιο (three years) (gymnasium), Γενικό Λύκειο (three years) (~1996, 2006~present), Ενιαίο Λύκειο (three years), (1997~2006) (lyceum)
- Hong Kong: Secondary school (中學 zung1 hok6)
- Hungary: gimnázium (grammar school), középiskola (comprehensive school, lit. "middle-school"), szakközépiskola (vocational secondary school, lit. "specified middle-school")
- 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 three years.
- India: secondary school or high school (grades 8–10), higher secondary school or senior secondary school or intermediate college or pre-university college (grades 11–12)
- 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")
- Ireland: Meánscoil or Secondary School
- Iran: Madrese Rahnamaie (مدرسه راهنمایی), (public secondary certificate)
- Israel: Bet Sefer Tichon (בית ספר תיכון) (literally middle school, but in reality grades 9-12)
- Italy: scuola secondaria di primo grado (three years) + scuola secondaria di secondo grado (five years): Liceo, Istituto Tecnico and Istituto professionale
- Jamaica: High School (public school 7–13), colleges (grand-aided schools 7–13)
- 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"
- Latvia: vidusskola (literally middle school)
- Liechtenstein: gymnasium
- Lithuania: vidurinė mokykla (literally middle school), gimnazija (gymnasium), licėjus (lyceum)
- Macau: Escola secundária (中學 zung1 hok6): schools with secondary sections have Ensino secundário (中學教育 zung1 hok6 gaau3 juk6)
- Malaysia: secondary school or sekolah menengah, sometimes high school is used
- Malta: skola sekondarja or secondary school
- Mexico: educación secundaria y preparatoria
- Mongolia: бүрэн дунд сургууль
- Morocco: In Arabic: Junior : Madrasa I'dadia Ta'hilia" (مدرسة إعدادية تأهيلية / preparative qualificative school) ; Senior : Madrasa I'dadia Thanawia" (مدرسة إعدادية ثانوية / preparative secondary school) - In French: lycée
- Netherlands: middelbare school or voortgezet onderwijs
- New Zealand: high school, college or secondary school
- Nigeria: Secondary school, Junior or senior secondary school
- Norway: videregående skole
- Pakistan: secondary school, higher secondary school
- Paraguay: educación media
- Peru: educación secundaria or escuela secundaria
- Philippines: mataas na paaralan; can be divided into "junior high school" (grades 7–10) and "senior high school" (grades 11–12)
- Poland:
- generally: szkoła średnia or szkoła ponadpodstawowa (szkoła ponadgimnazjalna during the existence of gimnazjum middle schools)
- specifically: liceum ogólnokształcące (comprehensive secondary school, grades 9–12), technikum (technical secondary school, grades 9-13)
- 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)
- Romania: gimnaziu (grades 5–8), liceu (grades 9–12)
- Russia: средняя школа (literally middle school); grades 5–9 junior middle school (compulsory), grades 10–11 senior middle school (voluntary)
- Serbia: gymnasium (four years), professional schools (four years), vocational schools (three or four years)
- Slovakia : gymnázium (i.e. gymnasium, also translated as grammar school or high school)
- Slovenia: gimnazija (gymnasium), srednja šola (literally middle school)
- South Africa: High School or Hoërskool
- 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, four years, 7th to 10th grade) and bachillerato (non-compulsory secondary education, to 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, three years, 9th to 11th grade) and C.O.U. (Curso de Orientación Universitaria, one year, 12th grade)
- Sri Lanka: junior secondary school, senior secondary school
- Sweden: gymnasium
- Switzerland: gymnasium, secondary school, collège or lycée
- Taiwan: Junior High School (國民中學), Senior High School (高級中學), Vocational High School (高級職業中學), Military School (軍校), and Complete High School (完全中學).
- Thailand: matthayommasueksa (มัธยมศึกษา; lit. "Secondary education")
- Trinidad and Tobago: Secondary School, Forms 1 to 5 (five years) or Forms 1-6 (seven years)
- Turkey: Lise
- Ukraine: grades 5–9 gymnasium (compulsory), grades 10–12 lyceum (voluntary)
- United Kingdom
- 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 (three years of compulsory education: Ciclo Básico; and three years of specialization: Bachillerato Diversificado, into: Humanities (Law or Economics), Biology (Medicine or Agronomy), Science (Engineering or Architecture), and Art
- Venezuela: bachillerato
- 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.)