All medalists.
IMO & IOI, including honourable mentions.
SIStefán Ingi ValdimarssonIcelandIMO1998 · 1999Arion bankiHead of Risk AnalysisIndexed profileSSStefaniya ShuturminskayaBelarusIMO2025 · 2026Competition recordBronze medalSKStefan KiechlAustriaIMO1984Medizinische Universität InnsbruckxIndexed profileSKStefan KummerSwitzerlandIOI1999Competition recordBronze medalSLStefan Laurenţiu HorneţRomaniaIMO1997 · 1998 · 1999SAPPrincipal Data ScientistIndexed profileSMStefan MaletićBosnia and HerzegovinaIMO2025Competition recordBronze medalSNStefan NikoloskiNorth MacedoniaIMO2014Competition recordHonourable mention
Stefano AttanasioItalyIMO2005CitadelQuantitative ResearcherAutumn profileSBStefano BolognesiItalyIMO1997Loro PianaAnalista e sviluppatore ITIndexed profileSCStefano Chiesa SuryantoIndonesiaIOI2013 · 2014HearthStaff Software EngineerIndexed profileSMStefano MaggioloItalyIOI2002GoogleSenior Staff Software Engineering ManagerIndexed profileSAStefanos AivazidisGreeceIMO2001The Hebrew University of Jerusalem, Einstein Institute of MathematicsIndexed profileSAStefanos AretakisGreeceIMO2003 · 2004University of TorontoAssociate ProfessorIndexed profileSRStefan Radu NiculescuRomaniaIMO1996PTCHead of Data Science, Senior Director, Digital Transformation SolutionsIndexed profileSRStefan RalescuRomaniaIMO1971Queens CollegeProfessorIndexed profileŞTŞtefan-Rareş TudoseRomaniaIMO2017Competition recordSilver medalSRStefan RomboutsBelgiumIMO1989Competition recordHonourable mentionSRStefan RpkeDenmarkIOI1994Competition recordBronze medalIndexed profileŠSŠtefan SakálošCzechoslovakiaIMO1970Competition recordBronze medalSSStefan SalomSerbia and MontenegroIOI2000Inspira grupaDirector of DevelopmentIndexed profileSSStefan SchallerAustriaIMO1998Competition recordHonourable mentionSSStefan SchwarzGermanyIMO1992 · 1993Competition recordSilver medal · Gold medalSŠStefan ŠebezSerbiaIMO2023 · 2024 · 2025 · 2026Competition recordBronze medal · Silver medal · Gold medalIndexed profileSŠStefan ŠebezSerbiaIOI2025Competition recordBronze medalŞSŞtefan SpătaruRomaniaIMO2012 · 2013 · 2014 · 2015Jump TradingQuantitative ResearcherAutumn profileSSStefan StojchevskiNorth MacedoniaIMO2009 · 2010 · 2012Competition recordBronze medal · Honourable mentionSTStefan TakacsAustriaIMO2003UniCredit Bank Austria AGBerater für WertpapierverkäufeIndexed profileSLStefanus LieIndonesiaIMO2010 · 2011 · 2012CPF BoardLead Actuarial AnalystAutumn profileSWStefan WagerSwitzerlandIMO2007Competition recordHonourable mentionSYStefan Yordanov AvramovBulgariaIOI2008PageBites, Inc.Software EngineerIndexed profileSÞStefán ÞorvarðarsonIcelandIMO2002Igloo (myigloo.com)Senior Backend EngineerIndexed profileSSStelios StylianouCyprusIMO2015 · 2016 · 2017Competition recordHonourable mention · Silver medal · Bronze medal
Stella ČoloCroatiaIMO2023Competition recordHonourable mentionAutumn profileSSSten SalomonsonSwedenIMO1970Tekniska verken i Linköping ABFd VDIndexed profileSKStepan KasalCzechoslovakiaIOI1991Competition recordSilver medalIndexed profileŠKŠtěpán KasalCzechoslovakiaIMO1990 · 1991Competition recordSilver medal · Bronze medalIndexed profileŠMŠtěpán MikéskaCzech RepublicIOI2023Competition recordBronze medalIndexed profileŠMŠtěpán MikéskaCzech RepublicIMO2023Competition recordBronze medalIndexed profileSPStepan PalamarchukUkraineIOI2009Thinking Machines LabMember of Technical StaffIndexed profileSSStepan SemyrenskyiUkraineIMO2025Competition recordBronze medalSSStepan SimakUkraineIOI2025Competition recordBronze medalŠŠŠtěpán ŠimsaCzech RepublicIOI2012 · 2013RossumStaff AI Research EngineerIndexed profile
Štěpán ŠimsaCzech RepublicIMO2011 · 2013RossumStaff AI Research EngineerAutumn profileSTStepan TerzijanBulgariaIMO1970Competition recordBronze medalSDStephan DabryneuskiBelarusIMO2012Competition recordHonourable mention
Stéphane CaronFranceIOI2005CNRS - Institute for Intelligent Systems and Robotics (ISIR)Researcher in robot learningAutumn profileSGStéphane GuillermouFranceIMO1988 · 1989Laboratoire de Mathématiques Jean LerayChercheur CNRSAutumn profileSNStephan NeupertGermanyIMO2007Synopsys IncSoftwareingenieurIndexed profileSPStephan PfannererAustriaIMO2009University of WaterlooPostdoctoral scholarAutumn profileSWStephan WagnerAustriaIMO1997 · 1998 · 1999 · 2000🎓Associate ProfessorIndexed profileSBStephen BrooksUnited KingdomIMO2000Competition recordBronze medalSDStephen DolanIrelandIOI2006 · 2007Competition recordSilver medal · Bronze medalIndexed profileSDStephen DolanIrelandIMO2006 · 2007Competition recordHonourable mention · Bronze medalIndexed profileSFStephen FarrarAustraliaIMO1997 · 1998Competition recordGold medal · Bronze medalSFStephen FurberUnited KingdomIMO1970Competition recordBronze medalSJStephen John Montgomery-SmithUnited KingdomIMO1981University of Missouri-ColumbiaProfessorIndexed profileSJStephen JonesSwitzerlandIOI1994Competition recordBronze medalSMStephen MackerethNew ZealandIMO2010Dartmouth CollegePostdoc, Society of Fellows and Dept. of PhilosophyIndexed profileSMStephen MerrimanNew ZealandIMO2001 · 2002 · 2003Competition recordBronze medal · Honourable mentionSMStephen ModzelewskiUnited States of AmericaIMO1974 · 1975Salomon BrothersIndexed profile
Stefano AttanasioItalyIMO2005CitadelQuantitative ResearcherAutumn profileSBStefano BolognesiItalyIMO1997Loro PianaAnalista e sviluppatore ITIndexed profileSCStefano Chiesa SuryantoIndonesiaIOI2013 · 2014HearthStaff Software EngineerIndexed profileSMStefano MaggioloItalyIOI2002GoogleSenior Staff Software Engineering ManagerIndexed profileSAStefanos AivazidisGreeceIMO2001The Hebrew University of Jerusalem, Einstein Institute of MathematicsIndexed profileSAStefanos AretakisGreeceIMO2003 · 2004University of TorontoAssociate ProfessorIndexed profileSRStefan Radu NiculescuRomaniaIMO1996PTCHead of Data Science, Senior Director, Digital Transformation SolutionsIndexed profileSRStefan RalescuRomaniaIMO1971Queens CollegeProfessorIndexed profileŞTŞtefan-Rareş TudoseRomaniaIMO2017Competition recordSilver medalSRStefan RomboutsBelgiumIMO1989Competition recordHonourable mentionSRStefan RpkeDenmarkIOI1994Competition recordBronze medalIndexed profileŠSŠtefan SakálošCzechoslovakiaIMO1970Competition recordBronze medalSSStefan SalomSerbia and MontenegroIOI2000Inspira grupaDirector of DevelopmentIndexed profileSSStefan SchallerAustriaIMO1998Competition recordHonourable mentionSSStefan SchwarzGermanyIMO1992 · 1993Competition recordSilver medal · Gold medalSŠStefan ŠebezSerbiaIMO2023 · 2024 · 2025 · 2026Competition recordBronze medal · Silver medal · Gold medalIndexed profileSŠStefan ŠebezSerbiaIOI2025Competition recordBronze medalŞSŞtefan SpătaruRomaniaIMO2012 · 2013 · 2014 · 2015Jump TradingQuantitative ResearcherAutumn profileSSStefan StojchevskiNorth MacedoniaIMO2009 · 2010 · 2012Competition recordBronze medal · Honourable mentionSTStefan TakacsAustriaIMO2003UniCredit Bank Austria AGBerater für WertpapierverkäufeIndexed profileSLStefanus LieIndonesiaIMO2010 · 2011 · 2012CPF BoardLead Actuarial AnalystAutumn profileSWStefan WagerSwitzerlandIMO2007Competition recordHonourable mentionSYStefan Yordanov AvramovBulgariaIOI2008PageBites, Inc.Software EngineerIndexed profileSÞStefán ÞorvarðarsonIcelandIMO2002Igloo (myigloo.com)Senior Backend EngineerIndexed profileSSStelios StylianouCyprusIMO2015 · 2016 · 2017Competition recordHonourable mention · Silver medal · Bronze medalStella ČoloCroatiaIMO2023Competition recordHonourable mentionAutumn profileSSSten SalomonsonSwedenIMO1970Tekniska verken i Linköping ABFd VDIndexed profileSKStepan KasalCzechoslovakiaIOI1991Competition recordSilver medalIndexed profileŠKŠtěpán KasalCzechoslovakiaIMO1990 · 1991Competition recordSilver medal · Bronze medalIndexed profileŠMŠtěpán MikéskaCzech RepublicIOI2023Competition recordBronze medalIndexed profileŠMŠtěpán MikéskaCzech RepublicIMO2023Competition recordBronze medalIndexed profileSPStepan PalamarchukUkraineIOI2009Thinking Machines LabMember of Technical StaffIndexed profileSSStepan SemyrenskyiUkraineIMO2025Competition recordBronze medalSSStepan SimakUkraineIOI2025Competition recordBronze medalŠŠŠtěpán ŠimsaCzech RepublicIOI2012 · 2013RossumStaff AI Research EngineerIndexed profileŠtěpán ŠimsaCzech RepublicIMO2011 · 2013RossumStaff AI Research EngineerAutumn profileSTStepan TerzijanBulgariaIMO1970Competition recordBronze medalSDStephan DabryneuskiBelarusIMO2012Competition recordHonourable mentionStéphane CaronFranceIOI2005CNRS - Institute for Intelligent Systems and Robotics (ISIR)Researcher in robot learningAutumn profileSGStéphane GuillermouFranceIMO1988 · 1989Laboratoire de Mathématiques Jean LerayChercheur CNRSAutumn profileSNStephan NeupertGermanyIMO2007Synopsys IncSoftwareingenieurIndexed profileSPStephan PfannererAustriaIMO2009University of WaterlooPostdoctoral scholarAutumn profileSWStephan WagnerAustriaIMO1997 · 1998 · 1999 · 2000🎓Associate ProfessorIndexed profileSBStephen BrooksUnited KingdomIMO2000Competition recordBronze medalSDStephen DolanIrelandIOI2006 · 2007Competition recordSilver medal · Bronze medalIndexed profileSDStephen DolanIrelandIMO2006 · 2007Competition recordHonourable mention · Bronze medalIndexed profileSFStephen FarrarAustraliaIMO1997 · 1998Competition recordGold medal · Bronze medalSFStephen FurberUnited KingdomIMO1970Competition recordBronze medalSJStephen John Montgomery-SmithUnited KingdomIMO1981University of Missouri-ColumbiaProfessorIndexed profileSJStephen JonesSwitzerlandIOI1994Competition recordBronze medalSMStephen MackerethNew ZealandIMO2010Dartmouth CollegePostdoc, Society of Fellows and Dept. of PhilosophyIndexed profileSMStephen MerrimanNew ZealandIMO2001 · 2002 · 2003Competition recordBronze medal · Honourable mentionSMStephen ModzelewskiUnited States of AmericaIMO1974 · 1975Salomon BrothersIndexed profile