All medalists.
IMO & IOI, including honourable mentions.
DDDeniss DunaveckisLatviaIMO2014whiteCryptionIndexed profileDSDenis ShpakovskiiRussiaIOI2017NXT Capital BVQuantitative ResearcherIndexed profileDTDenis TuscaItalyIMO2023Competition recordBronze medalDUDenis UvarovSoviet UnionIOI1991SWTecSenior Software EngineerIndexed profileDMDenitsa MarkovaBulgariaIMO2014 · 2015Competition recordHonourable mentionIndexed profileDCDeniz Can KaraçelebiTürkiyeIMO2025Competition recordSilver medalDGDeniz GündüzTürkiyeIMO1997Competition recordBronze medalDYDeniz YuretTürkiyeIMO1988Koç UniversityAkademisyenIndexed profileDIDennis IchpasPeruIMO2026Competition recordHonourable mentionDJDennis Joaquín Díaz DíazEl SalvadorIMO2016 · 2017Competition recordBronze medal · Honourable mentionDNDennis NeshtoonAzerbaijanIOI1997RCNTEC (ARCIENTEK)General Director (CEO)Autumn profileDPDenys Prince TuyisengeRwandaIMO2025 · 2026Competition recordHonourable mentionAutumn profileDPDenys PushkinUkraineIMO2016OracleIndexed profile
Denys SmirnovUkraineIMO2014 · 2015GSA CapitalQuantitative DeveloperAutumn profileDTDenys TereshchenkoUkraineIOI2024Competition recordSilver medalIndexed profileDVDenys VoloshynUkraineIMO2001Gigya (SAP)Senior Backend Engineer - AI/ML at Gigya (SAP)Indexed profileDADenzel AppauGhanaIMO2026Competition recordHonourable mentionDKDerek KismanCanadaIMO1996AppleSoftware Development EngineerIndexed profileDLDerek LiuUnited States of AmericaIMO2022 · 2023Competition recordGold medalDSDerek Samir Funez EstradaHondurasIMO2022Competition recordHonourable mentionDSDerek Samir Funez EstradaHondurasIMO2023Competition recordHonourable mentionDKDerianto KusumaIndonesiaIOI2004 · 2005 · 2006Competition recordSilver medalDLDerrick LukiminSingaporeIOI2026Competition recordSilver medalIndexed profileDCDeryck ChanUnited KingdomIOI2009Competition recordBronze medalDPDesikan PavankumarIndiaIMO1990Competition recordBronze medalDNDesislava NikolovSouth AfricaIMO2010AstorgDirectorIndexed profileDDDesmond DeonananTrinidad and TobagoIMO1991Competition recordHonourable mentionDBDessislava BakardzievaBulgariaIMO1987 · 1988Competition recordBronze medal · Silver medalDDDetelin DossevBulgariaIMO1995Oklahoma State UniversityTeaching Assistant ProfessorIndexed profileDSDewan Saadman HasanBangladeshIMO2019NVIDIAFinal Year ProjectIndexed profileDDDexin DongAustriaIMO2014Competition recordHonourable mentionIndexed profile
Deyan Hadzhi-ManichBulgariaIOI2022Mandel AIEngineering InternAutumn profileDSDeyan Stanislavov SimeonovBulgariaIMO2007Competition recordGold medalDMDezső MiklósHungaryIMO1976HUN-REN Renyi Institute of Mathematicsdeputy director, research fellowIndexed profileDBDhananjoy BiswasBangladeshIMO2011 · 2012re:framefounderIndexed profileDBDhananjoy BiswasBangladeshIOI2012 · 2013re:framefounderIndexed profile
Dhani Wiryawan SusiloIndonesiaIMO2002MillenniumSoftware EngineerAutumn profileDBDhruv BasuCanadaIMO2023Competition recordSilver medalDRDhruv RohatgiUnited States of AmericaIOI2016Competition recordGold medalDSDiāna SteckaLatviaIMO2026Competition recordBronze medalDȚDiana ȚoluRomaniaIMO2021Competition recordSilver medalIndexed profileDGDiane Gallois-WongFranceIMO2010 · 2011Nomadic LabsResearch Software EngineerIndexed profile
Diane IdrissMoroccoIMO2007J.P. MorganExecutive DirectorAutumn profileDMDiane MaclaganNew ZealandIMO1991Competition recordBronze medalDGDiar GashiKosovoIMO2021Competition recordHonourable mentionIndexed profileDEDiarmuid EarlyIrelandIMO2003Early Days ConsultingFounderIndexed profileDGDidar GayypovTurkmenistanIMO2020 · 2021Great Silk Road NetworkLead Full Stack EngineerIndexed profileDADiego Alejandro Flores MenjívarEl SalvadorIMO2016 · 2017 · 2018Competition recordHonourable mentionDADiego Alejandro GavinowichArgentinaIOI2002MicrosoftPrincipal Software EngineerIndexed profileDADiego Alfonso Villarreal GrimaldoMexicoIMO2022Competition recordBronze medalIndexed profileDADiego Alonso DomínguezSpainIMO2025 · 2026Competition recordBronze medal · Silver medal
Diego Alonso Roque MontoyaMexicoIMO2010 · 2011 · 2012 · 2013 · 2014Dark Forest TechnologiesPortfolio ManagerAutumn profileDiego Alonso Roque MontoyaMexicoIOI2013 · 2014Dark Forest TechnologiesPortfolio ManagerAutumn profileDADiego Andrés ViziaArgentinaIOI2005Competition recordBronze medalDBDiego BarcelloneItalyIMO2026Competition recordSilver medalDBDiego BenderskyArgentinaIOI1994DisarmistaSenior DeveloperIndexed profileDBDiego Bruno Izquierdo ArseguetSpainIMO2007 · 2008Competition recordBronze medalDCDiego Chumacero CarballoBoliviaIMO2017Gobierno Autónomo Municipal de La PazAnalista Tecnico DRM - SMRGVIndexed profileDCDiego CifuentesColombiaIMO2006 · 2007Georgia Institute of TechnologyAssistant ProfessorIndexed profileDCDiego CoronadoPeruIMO2021 · 2022Competition recordBronze medal · Silver medal
Denys SmirnovUkraineIMO2014 · 2015GSA CapitalQuantitative DeveloperAutumn profileDTDenys TereshchenkoUkraineIOI2024Competition recordSilver medalIndexed profileDVDenys VoloshynUkraineIMO2001Gigya (SAP)Senior Backend Engineer - AI/ML at Gigya (SAP)Indexed profileDADenzel AppauGhanaIMO2026Competition recordHonourable mentionDKDerek KismanCanadaIMO1996AppleSoftware Development EngineerIndexed profileDLDerek LiuUnited States of AmericaIMO2022 · 2023Competition recordGold medalDSDerek Samir Funez EstradaHondurasIMO2022Competition recordHonourable mentionDSDerek Samir Funez EstradaHondurasIMO2023Competition recordHonourable mentionDKDerianto KusumaIndonesiaIOI2004 · 2005 · 2006Competition recordSilver medalDLDerrick LukiminSingaporeIOI2026Competition recordSilver medalIndexed profileDCDeryck ChanUnited KingdomIOI2009Competition recordBronze medalDPDesikan PavankumarIndiaIMO1990Competition recordBronze medalDNDesislava NikolovSouth AfricaIMO2010AstorgDirectorIndexed profileDDDesmond DeonananTrinidad and TobagoIMO1991Competition recordHonourable mentionDBDessislava BakardzievaBulgariaIMO1987 · 1988Competition recordBronze medal · Silver medalDDDetelin DossevBulgariaIMO1995Oklahoma State UniversityTeaching Assistant ProfessorIndexed profileDSDewan Saadman HasanBangladeshIMO2019NVIDIAFinal Year ProjectIndexed profileDDDexin DongAustriaIMO2014Competition recordHonourable mentionIndexed profileDeyan Hadzhi-ManichBulgariaIOI2022Mandel AIEngineering InternAutumn profileDSDeyan Stanislavov SimeonovBulgariaIMO2007Competition recordGold medalDMDezső MiklósHungaryIMO1976HUN-REN Renyi Institute of Mathematicsdeputy director, research fellowIndexed profileDBDhananjoy BiswasBangladeshIMO2011 · 2012re:framefounderIndexed profileDBDhananjoy BiswasBangladeshIOI2012 · 2013re:framefounderIndexed profileDhani Wiryawan SusiloIndonesiaIMO2002MillenniumSoftware EngineerAutumn profileDBDhruv BasuCanadaIMO2023Competition recordSilver medalDRDhruv RohatgiUnited States of AmericaIOI2016Competition recordGold medalDSDiāna SteckaLatviaIMO2026Competition recordBronze medalDȚDiana ȚoluRomaniaIMO2021Competition recordSilver medalIndexed profileDGDiane Gallois-WongFranceIMO2010 · 2011Nomadic LabsResearch Software EngineerIndexed profileDiane IdrissMoroccoIMO2007J.P. MorganExecutive DirectorAutumn profileDMDiane MaclaganNew ZealandIMO1991Competition recordBronze medalDGDiar GashiKosovoIMO2021Competition recordHonourable mentionIndexed profileDEDiarmuid EarlyIrelandIMO2003Early Days ConsultingFounderIndexed profileDGDidar GayypovTurkmenistanIMO2020 · 2021Great Silk Road NetworkLead Full Stack EngineerIndexed profileDADiego Alejandro Flores MenjívarEl SalvadorIMO2016 · 2017 · 2018Competition recordHonourable mentionDADiego Alejandro GavinowichArgentinaIOI2002MicrosoftPrincipal Software EngineerIndexed profileDADiego Alfonso Villarreal GrimaldoMexicoIMO2022Competition recordBronze medalIndexed profileDADiego Alonso DomínguezSpainIMO2025 · 2026Competition recordBronze medal · Silver medalDiego Alonso Roque MontoyaMexicoIMO2010 · 2011 · 2012 · 2013 · 2014Dark Forest TechnologiesPortfolio ManagerAutumn profileDiego Alonso Roque MontoyaMexicoIOI2013 · 2014Dark Forest TechnologiesPortfolio ManagerAutumn profileDADiego Andrés ViziaArgentinaIOI2005Competition recordBronze medalDBDiego BarcelloneItalyIMO2026Competition recordSilver medalDBDiego BenderskyArgentinaIOI1994DisarmistaSenior DeveloperIndexed profileDBDiego Bruno Izquierdo ArseguetSpainIMO2007 · 2008Competition recordBronze medalDCDiego Chumacero CarballoBoliviaIMO2017Gobierno Autónomo Municipal de La PazAnalista Tecnico DRM - SMRGVIndexed profileDCDiego CifuentesColombiaIMO2006 · 2007Georgia Institute of TechnologyAssistant ProfessorIndexed profileDCDiego CoronadoPeruIMO2021 · 2022Competition recordBronze medal · Silver medal