All medalists.
IMO & IOI, including honourable mentions.
HIHendy IrawanIndonesiaIOI2000Competition recordBronze medalIndexed profileHZHengjie ZhangChinaIOI2015Competition recordGold medalHLHeng LiaoTaiwanIOI2025亞旭Indexed profileHNHeng NgovCambodiaIMO2016Competition recordHonourable mentionHRHeng Ruey HsuTaiwanIOI2000Competition recordSilver medalHLHengxi LiuChinaIOI2025Competition recordGold medalHZHengye ZhangChinaIMO2025Competition recordGold medalIndexed profileHZHenning ZhangSwitzerlandIMO2015 · 2016Competition recordBronze medalAutumn profileHIHeno IvanovEstoniaIOI1995Competition recordSilver medalHCHenri CampagnoloPortugalIMO2025Competition recordHonourable mentionHAHenrik AaltoFinlandIOI2021 · 2022ParahelpFounding EngineerIndexed profileHLHenrik LievonenFinlandIOI2014 · 2015GoogleIndexed profileHSHenrik SjöbergSwedenIOI1995Competition recordBronze medalHTHenrik Tobias MadsenDenmarkIMO2007 · 2008Competition recordHonourable mentionHCHenrique Cravo Esteves Dos SantosPortugalIMO2014 · 2015Competition recordHonourable mentionHGHenrique Gasparini Fiúza Do NascimentoBrazilIMO2011 · 2012Competition recordSilver medal · Bronze medalHMHenrique Miguel de Andrade Campos NavasPortugalIMO2016 · 2017Competition recordHonourable mention · Bronze medalIndexed profileHNHenrique NavasPortugalIOI2017Competition recordBronze medalHPHenrique Pondé de Oliveira PintoBrazilIMO2007 · 2008 · 2009OpenAIMember Of Technical StaffIndexed profileHRHenrique Rui Neves AguiarPortugalIMO2014 · 2015Competition recordBronze medalHFHenry Felén ChávezPeruIMO2015 · 2016 · 2017Competition recordBronze medalHGHenry George BottomleyUnited KingdomIMO1979Department for Science, Innovation and TechnologyIndexed profileHIHenry Ivanov BudinovBulgariaIMO1976Competition recordBronze medalHJHenry JayakusumaIndonesiaIMO2015 · 2016Competition recordBronze medalIndexed profile
Henry Jefferson Co MorcoPhilippinesIMO2010 · 2011 · 2012CitadelEngineerAutumn profileHIHenryk IwaniecPolandIMO1966Competition recordSilver medalIndexed profileHPHenryk PetrykPolandIMO1968Competition recordBronze medal
Henryk ToruńczykPolandIMO1963University of Warsaw, Institute of Mathematics (MIMUW)Professor of MathematicsAutumn profileHRHenry Robert ThackeraySouth AfricaIMO2006 · 2007 · 2008 · 2009University of PretoriaLecturerAutumn profileHWHenry Wei Cheng HsuBrazilIMO2004Competition recordBronze medalHJHeon JeongRepublic of KoreaIOI2002Competition recordBronze medalHHHeorhi HamezardashviliBelarusIMO2019Competition recordHonourable mentionHIHeorhii IvanchykUkraineIMO2017XTX MarketsQuantitative ResearcherAutumn profile
Herbert BeltmanNetherlandsIOI1998Ortec FinanceCoachAutumn profileHerbert BeltmanNetherlandsIMO1999Ortec FinanceCoachAutumn profileHIHerbert Ilhan TanujayaIndonesiaIMO2014 · 2015Apollo ResearchMember of Technical StaffAutumn profileHSHerbert SinwelAustriaIMO1974 · 1975Competition recordGold medal · Bronze medalHWHerbert WingenGermanyIMO1978Competition recordBronze medalHBHeriberto Betancourt DiesteCubaIOI1997Competition recordBronze medalIndexed profileHHHerman HaverkortNetherlandsIMO1992University of BonnAssistant Professor of Computer ScienceIndexed profileHKHerman KarlssonSwedenIOI2017CliraSoftware DeveloperIndexed profileHLHerman LauensteinSwedenIOI2021Competition recordBronze medalHHHermanni HuhtamäkiFinlandIMO2017 · 2020Competition recordHonourable mentionIndexed profileHDHermes David García AlvizColombiaIMO2014Competition recordHonourable mentionHDHernan Daniel BanduraArgentinaIOI2000cLabsSoftware EngineerIndexed profileHEHernàn Ezequiel Puschiasis PicapiedraUruguayIMO2019 · 2020 · 2021SunnyDataData EngineerIndexed profileHBHervé BonnaudFranceIMO1981Agence NEX&COM et sa filiale Medical Education. Revue Horizons & ThérapiesPrésident & OwnerIndexed profileHPHervé PépinFranceIMO1970Competition recordSilver medalHEHerwig EgghartAustriaIMO1987SCIENTIFIC GAMESCleanroom Software EngineerIndexed profileHRHesameddin RajabzadehIslamic Republic of IranIMO2010Competition recordSilver medalHAHessam AkhlaghpourIranIOI2006 · 2007The Rockefeller UniversitySenior Software EngineerIndexed profileHMHessam MahdavifarIslamic Republic of IranIMO2002 · 2003Northeastern UniversityAssociate ProfessorIndexed profileHLHeyang LiNew ZealandIMO2008Competition recordHonourable mentionHEHiba El FarchiouiMoroccoIMO2023Competition recordHonourable mention
Hibiki NishiwakiJapanIOI2023National University of SingaporeTeaching AssistantAutumn profileHJHideaki JoJapanIMO2001Competition recordBronze medalHCHieu Chi DamVietnamIOI1991Competition recordBronze medalHNHieu Nguyen VanVietnamIOI2002Competition recordSilver medalHYHikmet YıldızTürkiyeIMO2010Neural Propulsion Systems, Inc.Principal EngineerIndexed profileHGHilde Galleberg JohnsenNorwayIMO2005Competition recordHonourable mention
Henry Jefferson Co MorcoPhilippinesIMO2010 · 2011 · 2012CitadelEngineerAutumn profileHIHenryk IwaniecPolandIMO1966Competition recordSilver medalIndexed profileHPHenryk PetrykPolandIMO1968Competition recordBronze medalHenryk ToruńczykPolandIMO1963University of Warsaw, Institute of Mathematics (MIMUW)Professor of MathematicsAutumn profileHRHenry Robert ThackeraySouth AfricaIMO2006 · 2007 · 2008 · 2009University of PretoriaLecturerAutumn profileHWHenry Wei Cheng HsuBrazilIMO2004Competition recordBronze medalHJHeon JeongRepublic of KoreaIOI2002Competition recordBronze medalHHHeorhi HamezardashviliBelarusIMO2019Competition recordHonourable mentionHIHeorhii IvanchykUkraineIMO2017XTX MarketsQuantitative ResearcherAutumn profileHerbert BeltmanNetherlandsIOI1998Ortec FinanceCoachAutumn profileHerbert BeltmanNetherlandsIMO1999Ortec FinanceCoachAutumn profileHIHerbert Ilhan TanujayaIndonesiaIMO2014 · 2015Apollo ResearchMember of Technical StaffAutumn profileHSHerbert SinwelAustriaIMO1974 · 1975Competition recordGold medal · Bronze medalHWHerbert WingenGermanyIMO1978Competition recordBronze medalHBHeriberto Betancourt DiesteCubaIOI1997Competition recordBronze medalIndexed profileHHHerman HaverkortNetherlandsIMO1992University of BonnAssistant Professor of Computer ScienceIndexed profileHKHerman KarlssonSwedenIOI2017CliraSoftware DeveloperIndexed profileHLHerman LauensteinSwedenIOI2021Competition recordBronze medalHHHermanni HuhtamäkiFinlandIMO2017 · 2020Competition recordHonourable mentionIndexed profileHDHermes David García AlvizColombiaIMO2014Competition recordHonourable mentionHDHernan Daniel BanduraArgentinaIOI2000cLabsSoftware EngineerIndexed profileHEHernàn Ezequiel Puschiasis PicapiedraUruguayIMO2019 · 2020 · 2021SunnyDataData EngineerIndexed profileHBHervé BonnaudFranceIMO1981Agence NEX&COM et sa filiale Medical Education. Revue Horizons & ThérapiesPrésident & OwnerIndexed profileHPHervé PépinFranceIMO1970Competition recordSilver medalHEHerwig EgghartAustriaIMO1987SCIENTIFIC GAMESCleanroom Software EngineerIndexed profileHRHesameddin RajabzadehIslamic Republic of IranIMO2010Competition recordSilver medalHAHessam AkhlaghpourIranIOI2006 · 2007The Rockefeller UniversitySenior Software EngineerIndexed profileHMHessam MahdavifarIslamic Republic of IranIMO2002 · 2003Northeastern UniversityAssociate ProfessorIndexed profileHLHeyang LiNew ZealandIMO2008Competition recordHonourable mentionHEHiba El FarchiouiMoroccoIMO2023Competition recordHonourable mentionHibiki NishiwakiJapanIOI2023National University of SingaporeTeaching AssistantAutumn profileHJHideaki JoJapanIMO2001Competition recordBronze medalHCHieu Chi DamVietnamIOI1991Competition recordBronze medalHNHieu Nguyen VanVietnamIOI2002Competition recordSilver medalHYHikmet YıldızTürkiyeIMO2010Neural Propulsion Systems, Inc.Principal EngineerIndexed profileHGHilde Galleberg JohnsenNorwayIMO2005Competition recordHonourable mention