We thank all teachers, ambassadors, and participants around the world for making this year’s edition possible - despite all the challenges we face worldwide in 2021!
| 1. Prize Junior |  Swaraj Patil |
|---|---|
| 1. Prize Youth | Ankit Kumar |
| 2. Prize Junior |  Pritesh Thakur |
| 2. Prize Youth |  Md Abdullah Al Hasib Sifat |
| 3. Prize Junior |  Otávio Casagrande Ferrari |
| 3. Prize Youth |  Raian E Rabbani |
| Afghanistan |  Milad Mirzaee |
|---|---|
| Australia |  Rudra Sekhri |
| Azerbaijan |  Ramin Gasimli |
| Bangladesh | Raian E Rabbani |
| Bolivia |  Marvin Mario Martinez Nuñez |
| Bosnia and Herzegovina |  Zoran Stojnic |
| Brazil | Otávio Casagrande Ferrari |
| Bulgaria |  Ivan Popov |
| Cameroon |  Tchuileng Simen Mac Roy |
| Canada |  Louis-simon Guité |
| Chile |  Tae Ho Kim |
| China |  Jiarui Liao |
| Colombia |  Juan Sebastián Castillo Marín |
| Croatia |  Lea Gelo |
| Cyprus |  Ara Mahdessian |
| Czech Republic |  Jan Flajsar |
| Egypt |  Ahmed Moussa |
| El Salvador |  Clayton Xavier Vanegas Aguilar |
| Ethiopia |  Eden Asmare Abebe |
| France |  Elora Lefebvre |
| Germany |  Muhammad Sohrab Ali |
| Greece |  Ioannis Theiakoulis |
| Hong Kong |  Wisley Lau |
| India | Ankit Kumar |
| Indonesia |  Dewantoro Triatmojo |
| Iran |  Hossein Fatheddin |
| Iraq |  Barham Khdr Ibrahim |
| Isle of Man |  Ciara Sowerby |
| Italy |  Vittoria Altomonte |
| Japan |  Aniket Arnav |
| Kazakhstan |  Alan Zhainar |
| Korea, South |  Minwoong Choi |
| Lebanon |  Melissa Akiki |
| Macedonia |  Marija Miloshevska |
| Malaysia |  Khoo Yun Meng |
| Mexico |  Jose Pablo Guerra Santiago |
| Nepal | Pritesh Thakur |
| New Zealand |  Shilang Wang |
| Nigeria |  Jahwin James James |
| Oman |  Pragya Bradu |
| Pakistan |  Waddia Summan |
| Panama |  Diego Estevez |
| Paraguay |  Enzo José Coronel Guillen |
| Philippines |  Adrian Richard C. Salazar |
| Poland |  Viktoriia Vlasenko |
| Romania |  Ioana Popa |
| Russia | Md Abdullah Al Hasib Sifat |
| Rwanda |  Keza Teta Sandra Carine |
| Saudi Arabia |  Sayed Belal Mudassar |
| Serbia |  Djordje Milic |
| Singapore |  Teo Kai Wen |
| South Africa |  Masiye Ashley Sekgobela |
| Spain |  Iván Álvarez |
| Sri Lanka |  Harsana Sritharan |
| Switzerland |  Thomas Lahn |
| Syrian Arab Republic |  Mira Naffouj |
| Thailand |  Sakawan Junwikul |
| Trinidad and Tobago |  Karissa Sonoo |
| Tunisia |  Ayet Alah Chaieb |
| Turkey |  Ufuk Şengüler |
| Ukraine |  Taisiia Karasova |
| United Arab Emirates |  Parvati Vikas |
| United Kingdom |  Annabel Gray |
| United States |  Parth Parag Kulkarni |
| Venezuela |  Mariana España Rodriguez |
| Vietnam |  Bui Quoc Vinh Khang |
| Award for Most Participants | Mohammed Emad Said |
| Award for Most Finalists | Muhammad Danial Iman Bin Azlan Suhaimi |
| Award for Excellent Encouragement | Tiana Pendray |
| Award for Excellent Encouragement | Sadman Shabab Azad |
| Award for Excellent Encouragement | Reem Emad Wagih Ahmed |
| Award for Excellent Encouragement | Muhammad Rehmoz Salahuddin Ayub |
| Award for Excellent Encouragement | Lorrane Olivlet Araujo |
| Award for Excellent Encouragement | Long Ngoc Le |
| Award for Excellent Encouragement | Hasibul Hossain Rifat |
| Award for Excellent Encouragement | Farah Youssef |
| Award for Excellent Encouragement | Advait Arvind Joshi |
| School Award for Most Participants | Sharkya STEM School |
| School Award for Most Finalists | Colégio Etapa |
| School Award for Excellence | Philippine Science High School - Cordillera Administrative Region Campus |
| School Award for Excellence | Gharbiya STEM High School |
| School Award for Excellence | Delhi Public School |