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List of countries*

CodeCountryContactNational MO siteIMO Host
AFGAfghanistanOnder Akkusci <onderakkuscu@gmail.com>
ALBAlbaniaAdrian Naço <nacosotir@gmail.com>https://www.ama.org.al
ALGAlgeriaAbdelhafid Hadjsadok - Abdallah Rahmani <olympiades@education.gov.dz>
AGOAngolaGabriel Boaventura <gabrielboaventura1968@gmail.com>
ARGArgentinaPatricia Fauring <fauringpatricia@gmail.com>http://www.oma.org.ar/1997, 2012
ARMArmeniaSmbat Gogyan <gogyan@gmail.com>http://www.olymp.am
AUSAustraliaBen Kirk <ben.kirk@amt.edu.au>http://www.amt.edu.au/1988, 2025
AUTAustriaTheresia Eisenkölbl <theresia.eisenkoelbl@univie.ac.at>https://www.oemo.at1976
AZEAzerbaijanFuad Garayev <fuad.qarayev@edu.gov.az>
BAHBahrain
BGDBangladeshMahbub Majumdar <where.is.mahbub@gmail.com>http://www.matholympiad.org.bd/
BLRBelarusDavid Zmiaikou <david.zmiaikou@gmail.com>
BELBelgiumBart Windels <bart.windels@telenet.be>https://www.vwo.be/vwo/belgianmatholympiads
BENBeninLeonard Todjihounde <leonardt67@gmail.com>
BTNBhutanYeshey Lhendup <yesheylhendup@moe.gov.bt>
BOLBoliviaSonia Cordero Cárdenas <soniacordero3r@gmail.com>
BIHBosnia and HerzegovinaMuharem Avdispahić <mavdispa@pmf.unsa.ba>
BWABotswanaMmoloki Lekhutlile <mlekhutlile@gmail.com>
BRABrazilEdmilson Luis Rodrigues Motta <edmilsonlrm@gmail.com>http://www.obm.org.br/2017
BRUBruneiSyed Rozman bin Haji Syed Abd Rahim <rozmansr@hotmail.com>
BGRBulgariaStanislav Harizanov <sharizanov@gmail.com>http://www.math.bas.bg1966, 1975
BFABurkina FasoAntonio Kambiré <antoniokambire@gmail.com>https://cmathburkina.org
KHMCambodiaSeam Ngonn <seamngonn@yahoo.fr>
CMRCameroonJoseph Domguia <imocmr@gmail.com>https://olympiad.cm/
CANCanadaJames Rickards <imo@cms.math.ca>https://cms.math.ca/competitions/cmo/1995
CHIChileHernan Burgos <hernan.burgos@ufrontera.cl>http://www.olimpiadadematematica.cl/
CHNPeople's Republic of ChinaLI Kewen <likewen@cast.org.cn>1990, 2026
COLColombiaMaría Falk Losada <mariadelosada@gmail.com>http://oc.uan.edu.co2013
CISCommonwealth of Independent States
CRICosta RicaComisión de las Olimpiadas Costarricenses de Matemáticas <olcoma@ucr.ac.cr>http://olcoma.ac.cr/
HRVCroatiaMatija Bašić <mbasic@math.hr>http://www.matematika.hr/index.php/natjecanja/
CUBCubaNelson Tomás Hernandez Reyes <nelsonh231059@gmail.com>1987
CYPCyprusGregory Makrides <makrides.g@eaecnet.com>http://www.cms.org.cy
CZECzech RepublicPavel Calábek <pavel.calabek@upol.cz>http://www.matematickaolympiada.cz/
CZSCzechoslovakia1962, 1971, 1984
DENDenmarkKirsten Rosenkilde <kr@georgmohr.dk>http://www.georgmohr.dk/
DOMDominican RepublicZulaicka M. Guzmán G. <zulaicka.guzman@minerd.gob.do>
ECUEcuadorJorge Chamaidan <jchamaidan@yahoo.com>http://omec-mat.org
EGYEgypt
ESTEstoniaOleg Košik <oleg.koshik@ut.ee>http://www.math.olympiaadid.ut.ee/
FINFinlandAnne-Maria Ernvall-Hytönen <anne-maria.ernvall-hytonen@helsinki.fi>http://matematiikkakilpailut.fi/1985
FRAFranceVincent Jugé et Johan Yebbou <vincent.juge@animath.fr>http://www.animath.fr/1983
GMBGambiaKolapo I. Abdul <youthcarefd@yahoo.com>
GEOGeorgiaGeorge Chelidze <giorgi.chelidze@kiu.edu.ge>
GDRGerman Democratic Republic1965, 1974
GERGermanyUwe Leck <uwe.leck@uni-flensburg.de>https://www.mathe-wettbewerbe.de/1989, 2009
GHAGhanaJoel M. Dogoe <admin@misemaths.org>http://www.misemaths.org
HELGreeceAnargyros Fellouris <info@hms.gr>http://www.hms.gr2004
GTMGuatemalaJosé Carlos Bonilla <jcbonilla14@gmail.com>
HNDHondurasComité Hondureño de Olimpiadas Matemáticas <olimpiadamatematica.honduras@gmail.com>
HKGHong KongLander Lam <ccdoge@edb.gov.hk>1994, 2016
HUNHungaryViktor Harangi <harangi@gmail.com>1961, 1970, 1982, 2027
ISLIcelandFriđrik Diego <fd@hi.is>http://stae.is/stak/keppnin
INDIndiaProf. Prithwijit De <nc_matholy@hbcse.tifr.res.in>http://olympiads.hbcse.tifr.res.in/subjects/mathematics1996
IDNIndonesiaAleams Barra <aleamsbarra@gmail.com>http://www.tomi.or.id
IRQIraqMiri Taş <miritas2011@gmail.com>
IRNIslamic Republic of IranAli Partofard <alipartofard@ipm.ir>http://www.mathysc.ir
IRLIrelandBernd Kreussler <bernd.kreussler@mic.ul.ie>http://www.irmo.ie
ISRIsraelLev Radzivilovsky <levr78@hotmail.com>http://www.weizmann.ac.il/zemed/gillis
ITAItalyMassimo Gobbino <massimo.gobbino@unipi.it>http://olimpiadi.dm.unibo.it/
CIVIvory CoastAdama Coulibaly <couliba@yahoo.fr>
JAMJamaicaRaymond McEachin <rmceachin@hotmail.com>
JPNJapan森田康夫 <info@imojp.org>http://www.imojp.org2003, 2023
KAZKazakhstanGazhdembek Tursunov <daryn.intel@gmail.com>2010
KENKenyaJames Kiwanuka Katende <jkatende@uonbi.ac.ke>http://kkmo-official.com
PRKDemocratic People's Republic of KoreaGI CHAN KIM <drkedu@163.com>
KORRepublic of KoreaProf. Suyoung Choi <kmo@kms.or.kr>https://www.kmo.or.kr2000
KSVKosovoArmend Shabani <shoqata.matematikaneve@gmail.com>http://www.kms-ks.org
KWTKuwaitAdnan Abdulmuhsen <Cjakmian@kfas.org.kw>
KGZKyrgyzstanIshmatov Makhamadkhan <matematikLL@gmail.com>
LAOLaosSackmone Sirisack <ssirisack2000@yahoo.com>
LVALatviaMaruta Avotiņa <nms@lu.lv>http://nms.lu.lv
LIELiechtensteinArnaud Maret <a.maret@mathematical.olympiad.ch>https://mathematical.olympiad.ch/en/
LTULithuaniaArtūras Dubickas <arturas.dubickas@mif.vu.lt>http://mif.vu.lt/matematikos-olimpiados/
LUXLuxembourgMike Dostert <mike.dostert@education.lu>
MACMacauIeng Tak Long <itleong@um.edu.mo>
MDGMadagascarFanja Rakotondrajao <frakoton@yahoo.fr>
MASMalaysiaM. Suhaimi Ramly <contact@imo-malaysia.org>https://imo-malaysia.org/
MRTMauritaniaHorma Ould HAMOUD <horma04@yahoo.fr>https://maurimath.net/Olympiades.php
MEXMexicoMaria Guadalupe Russell Noriega <mgrussell@uas.edu.mx>http://www.ommenlinea.org2005
MDARepublic of MoldovaAnatolie Topala <anatoltop@yahoo.com>
MNGMongoliaOtgonbayar Uuye <otogo@me.com>http://www.mmo.mn
MNEMontenegroTatjana Vujosevic <tatjana.vujosevic@iccg.edu.me>
MARMoroccoASENSOUYIS Hassan <hassan_asensouyis@yahoo.fr>
MOZMozambiqueLuis de Nascimento Paulo <nascimento@mined.gov.mz>
MMRMyanmarNyunt Shwe <profnshwe@gmail.com>
NAMNamibiaMartin Mugochi <mmugochi@unam.na>https://nmo.ncrst.na/
NPLNepalBinod Prasad Pant <binod@kusoed.edu.np>https://www.mathassociationnepal.org.np/
NLDNetherlandsQuintijn Puite <olympiade@wiskundeolympiade.nl>http://wiskundeolympiade.nl/2011
NZLNew ZealandRoss Atkins <info@mathsolympiad.org.nz>https://www.mathsolympiad.org.nz
NICNicaraguaHank de Jesús Espinoza Serrano <hankchuus@yahoo.com>http://www.asjtnic.org/
NGANigeriaPromise Mebine <p.mebine@yahoo.com>http://www.nmcabuja.org
MKDNorth MacedoniaGjorgji Markoski <gorgi.markoski@gmail.com>https://smm.org.mk/
NORNorwayDag Wessel-Berg <dag.wessel-berg@ntnu.no>https://www.abelkonkurransen.no2022
OMNOmanMaya Al Azri <mayaalazri@gmail.com>
PAKPakistanSarfraz Ahmad <sarfrazahmad@cuilahore.edu.pk>
PSEPalestineSamed Alhajajla <haasamed@gmail.com>https://meshka.space
PANPanamaPedro A. Marrone G. <pmarrone@opm.org.pa>http://www.opm.org.pa/
PARParaguayGabriela Gómez Pasquali <gabriela@omapa.org.py>http://www.omapa.org.py
PERPeruComisión de Olimpiadas de la Sociedad Matemática Peruana <olimpiadas.matematicas@pucp.pe>https://selectivos-peru.blogspot.com/
PHIPhilippinesHazel Joy Shi <hgshi@up.edu.ph>http://pmo.ph
POLPolandAndrzej Grzesik <Andrzej.Grzesik@uj.edu.pl>http://om.sem.edu.pl/1963, 1972, 1986
PORPortugalJoana Teles <jteles@mat.uc.pt>http://www.spm.pt/olimpiadas
PRIPuerto RicoLuis F. Cáceres <luis.caceres1@upr.edu>http://om.pr
ROURomaniaCătălin Gherghe <catalinliviu.gherghe@gmail.com>http://rms.unibuc.ro1959, 1960, 1969, 1978, 1999, 2018
RUSRussian FederationKirill Sukhov <imo.russia@gmail.com>http://math.rosolymp.ru/1992, 2020, 2021
RWARwandaArun Shanmuganathan <shan.arun@gmail.com>https://rwandamatholympiad.com
SLVEl SalvadorRiquelmi Salvador Cardona Fuentes <riquelmi.cardona@jovenestalento.edu.sv>https://www.jovenestalento.edu.sv/
SAUSaudi ArabiaSultan Saud Albarakati <sultan.albarakati@kaust.edu.sa>https://www.mawhiba.org2028
SENSenegalSamba Dabo <sdabo345@gmail.com>
SRBSerbiaMiljan Knežević <kmiljan@matf.bg.ac.rs>https://dms.rs/
SCGSerbia and Montenegro
SGPSingaporeYan Loi Wong <matwyl@nus.edu.sg>http://sms.math.nus.edu.sg/
SVKSlovakiaStanislav Krajči <stanislav.krajci@upjs.sk>http://skmo.sk
SVNSloveniaGregor Dolinar <gregor.dolinar@fe.uni-lj.si>http://www.dmfa.si/2006
SAFSouth AfricaLiam Baker <bakerbakura@gmail.com>http://www.samf.ac.za2014
ESPSpainMaría Gaspar <mgaspar@ucm.es>https://www.rsme.es/olimpiada-matematica-espanola2008
LKASri LankaChanakya J. Wijeratne <chanakya_wijeratne@yahoo.com>http://www.slmathsolympiad.org/
SWESwedenJana Madjarova <jana@chalmers.se>http://www.mattetavling.se1991
SUISwitzerlandArnaud Maret <a.maret@mathematical.olympiad.ch>https://mathematical.olympiad.ch/en/
SYRSyriaHala Al Dakkak <dca.olympiad@gmail.com>https://dca-net.org/
TWNTaiwanYen-chi Roger Lin <yclinpa@gmail.com>https://tpmso.org/tmo/1998
TJKTajikistanUmed Karimov <umedkarimov@gmail.com>
TZATanzaniaErtugrul Tarhan <ertugrultarhan72@gmail.com>
THAThailandThiradet Jiarasuksakun <imo_thai@ipst.ac.th>2015
TTOTrinidad and TobagoIndra Haraksingh <iharaksingh@gmail.com>
TUNTunisiaTaoufik Charrada <tawfik.charrada@gmail.com>
TURTürkiyeAzer Kerimov <kerimov@fen.bilkent.edu.tr>https://bilimolimpiyatlari.tubitak.gov.tr/tr1993
NCYTurkish Republic of Northern Cyprus
TKMTurkmenistanPirmyrat Gurbanov <pirgurban@gmail.com>
UGAUgandaJoseph Ssebuliba <ssebulibaa@gmail.com>https://ums.ug/
UKRUkraineBogdan Rublov <rublyovbv@gmail.com>http://matholymp.com.ua/
UAEUnited Arab EmiratesAbdallah El Marhoune <Abdallah.Elmarhoune@moe.gov.ae>http://competitions.ae/masterminds/
UNKUnited KingdomGeoff Smith <geoffsmith1729@gmail.com>https://bmos.ukmt.org.uk/1979, 2002, 2019, 2024
USAUnited States of AmericaDoug Ensley <amchq@maa.org>https://maa.org/student-programs/amc/1981, 2001
URYUruguayNelson Chocca <nchocca@gmail.com>http://com-partidauruguay.weebly.com/
USSUnion of Soviet Socialist Republics1964, 1968, 1973
UZBUzbekistanUtkir Boltaev <uboltayev@gmail.com>http://olympiad.uzedu.uz
VENVenezuelaRafael Sánchez <lamonedar@gmail.com>https://www.acmven.org
VNMVietnamGia Vuong Nguyen Chu <ncgvuong@math.ac.vn>2007
YEMYemenMunaf Abood <munafabood@hotmail.com>
YUGYugoslavia1967, 1977
ZWEZimbabweA Stewart <stewarta@maths.uz.ac.zw>

* 'Country' refers to a country or in some exceptional cases to a territory/geographical region.

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