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.

NOTE. This page is incomplete. If you want to add a link, either add it to the table or post it in this topic.

National Olympiads/Competitions

Country	Olympiad Description and Link	Subject	Language
Argentina	Full Archive of Mathematical Olympiad Problems	Mathematics	Spanish
Belgium	VWO, JWO (Vlaamse Wiskunde Olympiade (Flanders/Juniors)), and Kangoeroe Archive from 1985 Problems w/o Solutions	Mathematics	Dutch
Canada	Canadian Mathematical Olympiad w/ Solutions Canadian Open Mathematics Challenge Other Canadian Competitions	Mathematics	English
Hong Kong	International Mathematical Olympiad Preliminary Selection Contest w/ Solutions Problems and solutions until 2017. Problems in English and Cantonese and solutions are English only.	Mathematics	English, Cantonese
India	All Indian National Olympiad Problems w/ Solutions	Astronomy Biology Checmistry Junior Science Mathematics Physics	English
Iran	Iranian National Olympiad Problems w/ Solutions (Farsi) -- Download Iranian Geometry Olympiad Problems w/ Solutions (English)	Mathematics	English Farsi
Romania	Contests and Olympiads in Romania locala means city phase, judeteana means county, and nationala means national. The Concursuri interjudetene section is dedicated to contests around the country.	Mathematics	Romanian
Russia	Sharygin Geometry Olympiad 2007-2017 w/ Solutions (English) Oral Sharygin Geometry Olympiad w/ Solutions (Russian) All Russian MO (Russian) Moscow Olympiad w/ Solutions (Russian) Almost all significant Russian competitions (Russian) Except all-Russian Olympiads, in various subjects, w/ Solutions	Science (Math, Comp. Sci., Phys., Chem., Bio., Geo., Astro.) Language (RU, EN, DE, FR, SP, IT, CH) Art, Literature, History,...	English Russian
Spain	Spain Mathematical Olympiad Problems w/ Solutions	Mathematics	Spanish
USA	Competition Subject AIME (American Invitational Mathematics Examination) Mathematics AMC 8 Mathematics AMC 10 Mathematics AMC 12/AHSME Mathematics BAMO (Bay Area Math Olympiad) Mathematics USAMO (United States of America Mathematical Olympiad) Mathematics MOP (Mathematical Olympiad Summer Program) Mathematics ELMO Mathematics USNCO (United States National Chemistry Olympiad) Chemistry	Mathematics Chemistry	English

International Olympiads/Competitions

Olympiad Description and Link	Subject	Language
EMIC (Elementary Mathematics International Competition)	Mathematics	English
AITMO/ITMO ([Asian] International Teenagers Mathematical Olympiad) Directory of Problems 2005 - 2017 (every two years, except 2007) w/ Solutions	Mathematics	English Taiwanese
IMO (International Mathematical Olympiad) Exam Problems and the Shortlist w/ Solutions	Mathematics	All languages
IWYMIC (The International World Youth Mathematics Intercity Competition) All Problems Since 1999 w/ Solutions	Mathematics	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 2016 w/ Solutions Theoretical Problems from 2017 w/ Solutions	Chemistry	English