All medalists.
IMO & IOI, including honourable mentions.
WBWiesław BekPolandIMO1974CapgeminiSolution ArchitectIndexed profileWKWietze KoopsNetherlandsIMO2016Lund UniversityDoctoral Student in Computer ScienceIndexed profileWUWijayanti UtariIndonesiaIMO1994Institut Teknologi Telkom (IT TELKOM)LecturerIndexed profileWMWijelath Mohotalage Don Sandil Sandipa RanasingheSri LankaIMO2017HeyMilo AISenior Software EngineerIndexed profileWYWijit YangjitThailandIMO2010 · 2011Competition recordSilver medal · Gold medalIndexed profileWJWiktor JakubiukUnited KingdomIOI2008Competition recordSilver medalWKWiktor KuropatwaPolandIOI2012BoltSoftware EngineerIndexed profileWSWilbin S. ChanPhilippinesIMO1991Competition recordBronze medalWPWilfried PascherAustriaIMO1973 · 1974 · 1975 · 1976Competition recordBronze medal · Gold medal · Silver medalWOWilhelm OttendörferAustriaIMO1973Competition recordBronze medalWOWilhelm OttoGerman Democratic RepublicIMO1965Competition recordBronze medalWSWilhelm SchlagAustriaIMO1987Yale UniversityProfessorIndexed profileWHWilke HavingaNetherlandsIOI1997Competition recordBronze medalWvWilke van der ScheeNetherlandsIOI2001 · 2004CERNResearch FellowIndexed profileWHWilko HeinGermanyIOI1992 · 1993Competition recordBronze medal · Silver medalWSWillem StuijtChileIOI2018JetBrainsIndexed profileW(William (Bill) David Kenneth GreenUnited KingdomIMO1979Competition recordSilver medalWBWilliam Blackwell IITrinidad and TobagoIMO1998MIT Lincoln LaboratoryLaboratory FellowIndexed profileWCWilliam CheahAustraliaIMO2022 · 2023 · 2024 · 2025Competition recordBronze medal · Silver medal · Gold medalWCWilliam CrossUnited States of AmericaIMO1986Competition recordSilver medalWGWilliam Gabriel Evertz AdamesDominican RepublicIMO2026Competition recordHonourable mentionWGWilliam George SteinbergAustraliaIMO2018 · 2019 · 2020Competition recordSilver medal · Gold medalWGWilliam GozaliIndonesiaIOI2011AppleSoftware DeveloperIndexed profileWGWilliam Gyuho SuhRepublic of KoreaIOI2016 · 2017대한민국 경기도 샘꾸미Korea Advanced Institute of Science and TechnologyIndexed profileWHWilliam HanNew ZealandIMO2017 · 2018 · 2019Competition recordBronze medal · Silver medalWHWilliam HartAustraliaIMO1993Competition recordSilver medalWHWilliam HawkinsAustraliaIMO1993 · 1994Competition recordBronze medal · Silver medalWHWilliam HuAustraliaIMO2017 · 2018Competition recordBronze medalWHWilliam HuUnited States of AmericaIOI2018MetaSoftware EngineerIndexed profileWJWilliam James SutherlandUnited KingdomIMO1982Competition recordBronze medalWLWilliam LinUnited States of AmericaIOI2019 · 2020Competition recordSilver medal · Gold medalWLWilliam LiuAustraliaIMO2025Competition recordSilver medalWPWilliam PorterfieldUnited KingdomIMO1968Competition recordGold medalWRWilliam RijksenNetherlandsIOI2023DPG Media NederlandFull stack-ontwikkelaarIndexed profileWRWilliam RucklidgeCanadaIMO1983Competition recordBronze medalIndexed profileWSWilliam SchneebergerUnited States of AmericaIMO1987Competition recordSilver medal
William ShiAustriaIMO2024 · 2025VVS HoldingsDeveloperAutumn profileWTWilliam ThomsonUnited KingdomIMO2023Competition recordSilver medal
William Timothy (Tim) GowersUnited KingdomIMO1981College de FranceProfesseur titulaire de la chaire CombinatoireAutumn profileWTWilliam Ting-Wei ChaoTaiwanIMO2014Massachusetts Institute of TechnologyInstructor in Applied MathematicsIndexed profileWWWilliam WangUnited States of AmericaIMO2020MetaSoftware EngineerIndexed profileWZWilliam ZhaoCanadaIMO2016 · 2017 · 2018 · 2019Independent ConsultantIndependent ConsultantIndexed profileWZWilson ZhaoAustraliaIMO2016Competition recordBronze medalWOWim OudshoornNetherlandsIMO1991Competition recordHonourable mentionWCWing Cheong ChanHong Kong, ChinaIOI1995Competition recordBronze medalWCWing Chung LeungHong KongIMO1997 · 1998HKTA Tang Hin Memorial Secondary SchoolTeacherIndexed profileWKWing Kai LeungHong KongIMO1990Competition recordBronze medalWYWing Yin YimHong Kong, ChinaIOI2006AIAHead of Actuarial Reporting and AnalyticsIndexed profileWYWing Yip HoHong KongIMO1994 · 1995 · 1996Competition recordSilver medal · Bronze medalWPWirawan PurwantoIndonesiaIOI1995Old Dominion UniversityHPC Computational ScientistIndexed profileWIWisan ImruethaijaroenchockThailandIMO1996Competition recordHonourable mentionWKWitchakorn KamolpornwijitThailandIOI2011Competition recordSilver medalWBWitold BiedrzyckiPolandIMO1981Competition recordSilver medalIndexed profileWRWitold RębaczPolandIMO2003WR ADVISORYFractional CFO, Interim CFOIndexed profileWSWitold SzczechlaPolandIMO1979Competition recordSilver medalWKWittawat KositwattanarerkThailandIMO1999 · 2000 · 2001Mahidol UniversityAssistant ProfessorIndexed profileWTWittawat TantisirirojThailandIOI2002Competition recordBronze medalIndexed profileWYWittawat YamwongThailandIOI1992National Science and Technology Development Agency (NSTDA)ResearcherIndexed profileWMW. M. D. SoysaSri LankaIMO2004Competition recordHonourable mentionWPWoicheh PatkaniowskiPolandIMO1964Competition recordBronze medal
William ShiAustriaIMO2024 · 2025VVS HoldingsDeveloperAutumn profileWTWilliam ThomsonUnited KingdomIMO2023Competition recordSilver medalWilliam Timothy (Tim) GowersUnited KingdomIMO1981College de FranceProfesseur titulaire de la chaire CombinatoireAutumn profileWTWilliam Ting-Wei ChaoTaiwanIMO2014Massachusetts Institute of TechnologyInstructor in Applied MathematicsIndexed profileWWWilliam WangUnited States of AmericaIMO2020MetaSoftware EngineerIndexed profileWZWilliam ZhaoCanadaIMO2016 · 2017 · 2018 · 2019Independent ConsultantIndependent ConsultantIndexed profileWZWilson ZhaoAustraliaIMO2016Competition recordBronze medalWOWim OudshoornNetherlandsIMO1991Competition recordHonourable mentionWCWing Cheong ChanHong Kong, ChinaIOI1995Competition recordBronze medalWCWing Chung LeungHong KongIMO1997 · 1998HKTA Tang Hin Memorial Secondary SchoolTeacherIndexed profileWKWing Kai LeungHong KongIMO1990Competition recordBronze medalWYWing Yin YimHong Kong, ChinaIOI2006AIAHead of Actuarial Reporting and AnalyticsIndexed profileWYWing Yip HoHong KongIMO1994 · 1995 · 1996Competition recordSilver medal · Bronze medalWPWirawan PurwantoIndonesiaIOI1995Old Dominion UniversityHPC Computational ScientistIndexed profileWIWisan ImruethaijaroenchockThailandIMO1996Competition recordHonourable mentionWKWitchakorn KamolpornwijitThailandIOI2011Competition recordSilver medalWBWitold BiedrzyckiPolandIMO1981Competition recordSilver medalIndexed profileWRWitold RębaczPolandIMO2003WR ADVISORYFractional CFO, Interim CFOIndexed profileWSWitold SzczechlaPolandIMO1979Competition recordSilver medalWKWittawat KositwattanarerkThailandIMO1999 · 2000 · 2001Mahidol UniversityAssistant ProfessorIndexed profileWTWittawat TantisirirojThailandIOI2002Competition recordBronze medalIndexed profileWYWittawat YamwongThailandIOI1992National Science and Technology Development Agency (NSTDA)ResearcherIndexed profileWMW. M. D. SoysaSri LankaIMO2004Competition recordHonourable mentionWPWoicheh PatkaniowskiPolandIMO1964Competition recordBronze medal