All medalists.
IMO & IOI, including honourable mentions.
CBCheikh Baye KhlifaMauritaniaIMO2022Competition recordHonourable mentionAutumn profileCBChek Beng ChuaSingaporeIMO1991 · 1992Delfi LimitedSenior ConsultantIndexed profileCLChe LiuChinaIMO2026Competition recordGold medal
Che LiuTaiwanIOI2022Qube Research & TechnologiesSoftware Engineering InternAutumn profileCZChenchang ZhuChinaIMO1995The University of GöttingenProfessorIndexed profileCFChen Fu HuangTaiwanIOI1994 · 1995Competition recordBronze medal · Silver medalCCCheng ChangChinaIMO1995The D. E. Shaw GroupQuantitative AnalystIndexed profileCTCheng-Chiang TsaiTaiwanIMO2004 · 2005Youth Association in mathematicsProject ManagerIndexed profileCSCheng-Chou ShuTaiwanIMO1995Competition recordHonourable mentionCYCheng-Hao YangTaiwanIOI2020GoogleSoftware EngineerIndexed profileCICheng In CheungMacauIMO2020 · 2021 · 2022Competition recordHonourable mention · Bronze medalIndexed profileCJCheng JiangChinaIMO2022Competition recordGold medalCJCheng Jiann HuahSingaporeIMO1997 · 1998Competition recordBronze medal · Silver medalCLCheng Long LeongMacauIMO2024Competition recordHonourable mentionCCCheng-Min ChiangTaiwanIOI2012ArenaMember of Technical StaffIndexed profileCSCheng ShiSingaporeIMO2018Competition recordBronze medalCUCheng U IanMacao, ChinaIOI2021 · 2022Competition recordSilver medalCTCheng-Yang TsaiTaiwanIOI2003Arista NetworksSoftware EngineerIndexed profileCLCheng-Yen LiTaiwanIMO2019Competition recordBronze medalIndexed profileCCCheng-Ying ChangTaiwanIMO2020Competition recordSilver medalCYCheng You SengMalaysiaIMO2026Competition recordHonourable mentionC(Chengyue (Jarno) SunCanadaIMO2007 · 2008 · 2009Aspen TechnologySenior EngineerIndexed profileCLCheng-Yu LeeTaiwanIOI2002GoogleSoftware engineerIndexed profileCZCheng ZhangChinaIMO2008Competition recordGold medalCXChenhai XiChinaIMO1994Competition recordSilver medalIndexed profileCCChen-Han ChungTaiwanIMO2001Competition recordSilver medalCYChenjie YuChinaIMO2015GoogleSoftware EngineerIndexed profileCTChen-Jui TsaoTaiwanIOI2020Google軟體工程師Indexed profileCCChen-Kai ChangTaiwanIOI2021Competition recordSilver medal
Chen SunCanadaIMO2008 · 2009 · 2010Google DeepMindResearch ScientistIndexed profileCWChen WeiChinaIMO2021Competition recordGold medalCDChenxin DaiChinaIOI2021Competition recordGold medalCXChen XingSwedenIMO2006 · 2007Zhejiang University of Water Resource and Electric PowerLecturerIndexed profileCXChen XingSwedenIOI2004 · 2005 · 2006 · 2007KTH Royal Institute of TechnologyComputational ChemistryIndexed profileCFChenxu FengChinaIMO2021Competition recordGold medalCYChen YangChinaIMO2026Competition recordGold medalCYChen Yu-ChunTaiwanIMO1996Competition recordSilver medalCLChenyu LinNetherlandsIOI2024 · 2025Competition recordBronze medal · Silver medalCYChen-Yu YangTaiwanIMO2009Competition recordSilver medalCZChen ZhangChinaIOI2000Competition recordBronze medalCZChen ZhangChinaIOI1993 · 1995SANFU!Chief Digital OfficerIndexed profileCHCheok Him ChanMacauIMO2026Competition recordHonourable mentionCLCheok Lam LaiMacauIMO2019 · 2020 · 2021Competition recordHonourable mention · Bronze medalCTCheong Tee JinMalaysiaIMO2007KCT Consulting Engineers (Perunding KCT SDN. BHD.)Senior EngineerIndexed profileCTChe-Ping TsaiTaiwanIMO2011 · 2012Carnegie Mellon UniversityDoctoral Student at Machine Learning DepartmentIndexed profileCMCheran Malsri VithanageSri LankaIMO1995Competition recordHonourable mentionCOCherif OmarTunisiaIMO2022 · 2023Competition recordHonourable mentionCYCherif YoussfiMoroccoIMO1991Competition recordBronze medalCECherkaoui El MachrouhiMoroccoIMO2003Royal Air Force (RAF)Ingénieur maintenance aéronautiqueIndexed profileCICherng-Yann IngTaiwanIOI1996Genius Vision Inc.PresidentIndexed profileCBChesphongphach BuranasilpThailandIMO2016AgodaSenior Software EngineerIndexed profileCBChetan BalweIndiaIMO1997 · 1998Competition recordSilver medal · Gold medalCCChethana Chathuprabha Belpa GodageSri LankaIMO2014Competition recordHonourable mentionCAChethiya AbeysingheSri LankaIOI2002 · 2003 · 2004 · 2005 · 2006 · 2007GoogleSoftware EngineerIndexed profile
Cheuk Hei ChuHong KongIMO2020 · 2021 · 2022 · 2023OpenAIResearcherAutumn profileCTCheuk Ting LiHong Kong, ChinaIOI2007 · 2008Competition recordBronze medal · Silver medalIndexed profileCTCheuk Ting LiHong KongIMO2007 · 2008Competition recordBronze medal · Silver medalIndexed profileCYChe Yang WuTaiwanIOI2008 · 2009TRAPA SecuritySenior ResearcherIndexed profile
Che-Yu LiuTaiwanIMO2005 · 2006Two SigmaQuantitative ResearcherAutumn profileCWChe-Yu WuTaiwanIMO2002Competition recordBronze medal
Che LiuTaiwanIOI2022Qube Research & TechnologiesSoftware Engineering InternAutumn profileCZChenchang ZhuChinaIMO1995The University of GöttingenProfessorIndexed profileCFChen Fu HuangTaiwanIOI1994 · 1995Competition recordBronze medal · Silver medalCCCheng ChangChinaIMO1995The D. E. Shaw GroupQuantitative AnalystIndexed profileCTCheng-Chiang TsaiTaiwanIMO2004 · 2005Youth Association in mathematicsProject ManagerIndexed profileCSCheng-Chou ShuTaiwanIMO1995Competition recordHonourable mentionCYCheng-Hao YangTaiwanIOI2020GoogleSoftware EngineerIndexed profileCICheng In CheungMacauIMO2020 · 2021 · 2022Competition recordHonourable mention · Bronze medalIndexed profileCJCheng JiangChinaIMO2022Competition recordGold medalCJCheng Jiann HuahSingaporeIMO1997 · 1998Competition recordBronze medal · Silver medalCLCheng Long LeongMacauIMO2024Competition recordHonourable mentionCCCheng-Min ChiangTaiwanIOI2012ArenaMember of Technical StaffIndexed profileCSCheng ShiSingaporeIMO2018Competition recordBronze medalCUCheng U IanMacao, ChinaIOI2021 · 2022Competition recordSilver medalCTCheng-Yang TsaiTaiwanIOI2003Arista NetworksSoftware EngineerIndexed profileCLCheng-Yen LiTaiwanIMO2019Competition recordBronze medalIndexed profileCCCheng-Ying ChangTaiwanIMO2020Competition recordSilver medalCYCheng You SengMalaysiaIMO2026Competition recordHonourable mentionC(Chengyue (Jarno) SunCanadaIMO2007 · 2008 · 2009Aspen TechnologySenior EngineerIndexed profileCLCheng-Yu LeeTaiwanIOI2002GoogleSoftware engineerIndexed profileCZCheng ZhangChinaIMO2008Competition recordGold medalCXChenhai XiChinaIMO1994Competition recordSilver medalIndexed profileCCChen-Han ChungTaiwanIMO2001Competition recordSilver medalCYChenjie YuChinaIMO2015GoogleSoftware EngineerIndexed profileCTChen-Jui TsaoTaiwanIOI2020Google軟體工程師Indexed profileCCChen-Kai ChangTaiwanIOI2021Competition recordSilver medalChen SunCanadaIMO2008 · 2009 · 2010Google DeepMindResearch ScientistIndexed profileCWChen WeiChinaIMO2021Competition recordGold medalCDChenxin DaiChinaIOI2021Competition recordGold medalCXChen XingSwedenIMO2006 · 2007Zhejiang University of Water Resource and Electric PowerLecturerIndexed profileCXChen XingSwedenIOI2004 · 2005 · 2006 · 2007KTH Royal Institute of TechnologyComputational ChemistryIndexed profileCFChenxu FengChinaIMO2021Competition recordGold medalCYChen YangChinaIMO2026Competition recordGold medalCYChen Yu-ChunTaiwanIMO1996Competition recordSilver medalCLChenyu LinNetherlandsIOI2024 · 2025Competition recordBronze medal · Silver medalCYChen-Yu YangTaiwanIMO2009Competition recordSilver medalCZChen ZhangChinaIOI2000Competition recordBronze medalCZChen ZhangChinaIOI1993 · 1995SANFU!Chief Digital OfficerIndexed profileCHCheok Him ChanMacauIMO2026Competition recordHonourable mentionCLCheok Lam LaiMacauIMO2019 · 2020 · 2021Competition recordHonourable mention · Bronze medalCTCheong Tee JinMalaysiaIMO2007KCT Consulting Engineers (Perunding KCT SDN. BHD.)Senior EngineerIndexed profileCTChe-Ping TsaiTaiwanIMO2011 · 2012Carnegie Mellon UniversityDoctoral Student at Machine Learning DepartmentIndexed profileCMCheran Malsri VithanageSri LankaIMO1995Competition recordHonourable mentionCOCherif OmarTunisiaIMO2022 · 2023Competition recordHonourable mentionCYCherif YoussfiMoroccoIMO1991Competition recordBronze medalCECherkaoui El MachrouhiMoroccoIMO2003Royal Air Force (RAF)Ingénieur maintenance aéronautiqueIndexed profileCICherng-Yann IngTaiwanIOI1996Genius Vision Inc.PresidentIndexed profileCBChesphongphach BuranasilpThailandIMO2016AgodaSenior Software EngineerIndexed profileCBChetan BalweIndiaIMO1997 · 1998Competition recordSilver medal · Gold medalCCChethana Chathuprabha Belpa GodageSri LankaIMO2014Competition recordHonourable mentionCAChethiya AbeysingheSri LankaIOI2002 · 2003 · 2004 · 2005 · 2006 · 2007GoogleSoftware EngineerIndexed profileCheuk Hei ChuHong KongIMO2020 · 2021 · 2022 · 2023OpenAIResearcherAutumn profileCTCheuk Ting LiHong Kong, ChinaIOI2007 · 2008Competition recordBronze medal · Silver medalIndexed profileCTCheuk Ting LiHong KongIMO2007 · 2008Competition recordBronze medal · Silver medalIndexed profileCYChe Yang WuTaiwanIOI2008 · 2009TRAPA SecuritySenior ResearcherIndexed profileChe-Yu LiuTaiwanIMO2005 · 2006Two SigmaQuantitative ResearcherAutumn profileCWChe-Yu WuTaiwanIMO2002Competition recordBronze medal