Olympiad Archive

Here is a list of links to High School and College National Olympiads and Competitions on Science (mainly Mathematics) all over the world, in different languages. A good number of websites mentioned in this section are taken from the Countries page of the website of the International Mathematical Olympiad.

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National Olympiads/Competitions

Country	Olympiad Description and Link	Subject	Language
Argentina	Full Archive of Mathematical Olympiad Problems	Mathematics	Spanish
Australia	Australia Physics Olympiad from 2007 to 2016 w/ Solutions	Physics	English
Belarus	Belarusian Physics Olympiad (Russian)	Physics	Russian
Belgium	VWO, JWO (Vlaamse Wiskunde Olympiade (Flanders/Juniors)), and Kangoeroe Archive from 1985 Problems w/o Solutions OMB (Olympiade Mathématique Belge (Wallonia)) Archive from 2004 Problems and partial solutions posted by users from the internet	Mathematics	Dutch
Britain	BPhO (British Physics Olympiad) Problems since 2002 w/ Solutions BMO (British Mathematical Olympiad) Problems since 1972 w/o Solutions Problems from 1965 to 1996 w/ Solutions (Book) UK Chemistry Olympiad Problems since 2003 w/ Solutions	Chemistry Mathematics Physics	English
Canada	Canadian Mathematical Olympiad w/ Solutions Canadian Open Mathematics Challenge Other Canadian (Math) Competitions Canada Physics Olympiad (First Round) Problems w/ Solutions	Mathematics Physics	English
China	China TST [1]	Math	English
Czech Republic	Czech Physics Olympiad Archive of Problems since 1997 w/ Solutions	Physics
Estonia	Estonian Mathematical Olympiad Archive of Problems since 1992 w/ Solutions (Estonian and Russian) Estonian Physics Olympiad Full Archive of Problems since 1996 w/ Solutions //www.ioc.ee/~kalda/ipho/E_S.html (English,Estonian)	Mathematics [2] (Geometry)	Estonian Russian
Hong Kong	International Mathematical Olympiad Preliminary Selection Contest w/ Solutions Problems until 2020 and solutions until 2019. The paper of 2020 only has answers, but no solutions yet. Problems in English and Cantonese and solutions are English only.	Mathematics	English, Cantonese
India	All Indian National Olympiad Problems w/ Solutions (Astronomy, Biology, Chemistry, Junior Science, Mathematics, Physics) Indian National Olympiad in Informatics Archive of Problems since 2002 w/ Partial Solutions [3] //www.ijsoweb.org	Astronomy(IOAA) Biology(IBO) Chemistry(ICHO) Informatics(IOI) Junior Science(IJSO) Mathematics(IMO) Physics(IPHO)	English
Iran	Iranian National Olympiad Problems w/ Solutions (Farsi) -- Download Iranian Geometry Olympiad Problems w/ Solutions (English)	Mathematics	English Farsi
Italy	Italian Physics Olympiad (Olimpiadi Italiane di Fisica) (Italian)	Physics	Italian
Israel	Israeli National Physics Olympiad (Hebrew)	Physics	Hebrew
Romania	Math Contests and Olympiads in Romania Problems w/o Solutions in Romanian locala means city phase, judeteana means county, and nationala means national. The Concursuri interjudetene section is dedicated to contests around the country. Romanian Masters in Physics Problems w/ Solutions in English 1st Competition (2010) 2nd Competition (2012) 3rd Competition (2013) 4th Competition (2014) 5th Competition (2015) 6th Competition (2017) 7th Competition (2017)	Mathematics Physics	English Romanian
Russia	Sharygin Geometry Olympiad 2007-2017 w/ Solutions (English) Oral Sharygin Geometry Olympiad w/ Solutions (Russian) All Russian Mathematical Olympiads (Russian) All Russian Olympiads in Various Subjects w/ Solutions (Russian) Moscow Mathematical Olympiad w/ Solutions (Russian) Almost all significant Russian competitions (Russian) Except all-Russian Olympiads, in various subjects, w/ Solutions MIPT (Fiztekh) Physics Olympiad (Russian) Saint Petersburg Physics Olympiad (Russian) Russian Informatics Olympiad (Russian) Archive of Problems since 1986 w/ Solutions	Science (Math, Comp. Sci., Phys., Chem., Bio., Geo., Astro.) Language (RU, EN, DE, FR, SP, IT, CH) Art, Literature, History,...	English Russian
Serbia	Serbian Physics Olympiad Archive of Problems since 2001 (and partial previous years) (Serbian)	Physics	Serbian
Slovakia	Slovak Physics Olympiad Archive of Problems since 2002 w/o Solutions (Slovak) FKS (The Physics Correspondence Seminar) Problems w/ Partial Solutions (Slovak)	Physics	Slovak
Spain	Spain Mathematical Olympiad Problems w/ Solutions	Mathematics	Spanish
Switzerland	SMO (Schweizer Mathematik Olympiade) Problems since 1997 w/ Partial Solutions (German) Notes for Math Olympiad Preparation (German) SwissPho (Swiss Physics Olympiad) Problems since 2006 w/ Partial Solutions (German, French, Italian) Notes for Physics Olympiad Preparation [PDF] (English)	Mathematics Physics	English French German Italian
Turkey	Biology Olympiad Problems Archive since 2000 Chemistry Olympiad Problems Archive since 1997 Informatics Olympiad Problems Archive since 2000 Math Olympiad Problems Archive since 1999 Physics Olympiad Problems Archive since 1997	Biology Chemistry Informatics Mathematics Physics	Turkish
USA	Competition Subject American Invitational Mathematics Examination Mathematics AMC 8 Mathematics AMC 10 Mathematics AMC 12/AHSME Mathematics BAMO (Bay Area Math Olympiad) Mathematics United States of America Mathematical Olympiad Mathematics Mathematical Olympiad Summer Program Mathematics ELMO Mathematics Stanford University Math Olympiad Towards the bottom of the page is the archive Mathematics Harvard-MIT Math Tournament Mathematics The Carnegie Mellon Informatics and Mathematics Competition Mathematics Duke Math Meet Mathematics Berkeley Math Tournament Mathematics USNCO (United States National Chemistry Olympiad) Chemistry USAPhO (United States of America Physics Olympiad) Physics USACO (United States of America Computing Olympiad) Informatics	Chemistry Informatics Mathematics Physics	English

International Olympiads/Competitions

Olympiad Description and Link	Subject	Language
APhO (Asian Physics Olympiad) Archive of Problems from 1999 to 2014 w/ Solutions 2015 2016 2017 2018	Physics	English
BAUPC (Boston Area Undergraduate Physics Competition) Problems from 1995 to 2004 w/ Solutions	Physics	English
EMIC (Elementary Mathematics International Competition)	Mathematics	English
EuPhO (European Physics Olympiad) Problems w/ Solutions 1st Competition (2017) 2nd Competition (2018)	Physics	English
ICHO (International Chemistry Olympiad) All Problems from 1968 to 1988 w/ Solutions All Problems from 1989 to 2008 w/ Solutions All Problems from 2009 to 2013 w/ Solutions Practical Problems from 2014 w/o Solutions Theoretical Problems from 2014 w/ Solutions Practical Problems from 2015 w/ Solutions Theoretical Problems from 2015 w/ Solutions Practical Problems from 2016 w/ Solutions Theoretical Problems from 2016 w/ Solutions Practical Problems from 2017 w/ Solutions Theoretical Problems from 2017 w/ Solutions	Chemistry	English
IMO (International Mathematical Olympiad) Exam Problems and the Shortlist w/ Solutions	Mathematics	All languages
IOI (International Olympiad in Informatics) Problems from 2017	Informatics	All languages
IPhO (International Physics Olympiad) Exam Problems w/ Solutions Problems and solutions from 1967 to 2009 Newer papers on the respective sites	Physics	English
IPT (International Physicists' Tournament) Archive of Problems since 2012 w/o Solutions	Physics	English
ITMO/AITMO ([Asian] International Teenagers Mathematical Olympiad) Directory of Problems w/ Solutions Archive from 2005 to 2017 Every two years, except 2007	Mathematics	English Taiwanese
IWYMIC (The International World Youth Mathematics Intercity Competition) All Problems Since 1999 w/ Solutions	Mathematics	English
IYPT (International Young Physicists' Tournament) Archive of Problems since 1988 w/ Solutions	Physics	English Russian
KöMaL Contest Archive of Problems since 1997 w/o Solutions	Informatics Mathematics Physics	English
NBPhO (Northern Baltic Physics Olympiad) AKA Estonian-Finnish Olympiad in Physics Problems from 2003 w/ Solutions	Physics	English Estonian Finnish Latvian Swedish Russian
Olimpiadas Iberoamericanas de Física Archive of Problems since 1991 w/o Solutions	Physics	English
Online Physics Brawl Problems w/ Solutions since 2012	Physics	English
Princeton University Physics Competition Archive of Problems since 2014 w/ Solutions	Physics	English
Physics Cup 2018 2017 2013 2012	Physics	English
Rudolf Ortvay International Competition in Physics Problems from 1997 w/o Solutions	Physics	English
The University Physics Competition Archive of Problems since 2010	Physics	All languages