| OSN 2025 | 18 | Leonardus Lintang Panji Utama | SMA Kesatuan Bangsa | 100 | 9 | 16 | 62 | 6 | 24 | | 217 | Perunggu |
| 54 | Jihad Malika Rahman | SMAN 6 Yogyakarta | 40 | 0 | 4 | 8 | 6 | 6 | | 64 | |
| OSN 2024 | 36 | Maximus Quinn Hertada | SMAN 3 Yogyakarta | 41 | 18 | 19 | 51 | 19 | 69 | | 217 | |
| 56 | Leonardus Lintang Panji Utama | SMP Kesatuan Bangsa Bantul | 28 | 5 | 9 | 35 | 8 | 54 | | 139 | |
| 68 | Mohammad Aryasatya Arifien | SMAN 1 Yogyakarta | 28 | | | 51 | 19 | 0 | | 98 | |
| 73 | Bagas Anggareksa Irsyad Dhanisywara | SMA Kesatuan Bangsa | 6 | 18 | 0 | 20 | 29 | 8 | | 81 | |
| 76 | Danendra Naufal Sinambela | SMP Kesatuan Bangsa Bantul | 6 | 5 | 19 | 20 | 8 | 8 | | 66 | |
| OSN 2023 | 2 | Hanif Achdan Pietoyo | SMA Kesatuan Bangsa | 100 | 77 | 38 | 100 | 100 | 28 | | 443 | Emas |
| 28 | Atila Ghulwani Altamis | SMAN 3 Yogyakarta | 59 | 48 | 16 | 100 | 26 | 24 | | 273 | Perunggu |
| 74 | Ryan Ethan Halim | SMA Kolose De Britto Yogyakarta | 73 | 6 | 5 | 42 | 0 | 0 | | 126 | |
| 75 | Bagas Anggareksa Irsyad Dhanisywara | SMA Kesatuan Bangsa | 23 | 13 | 5 | 52 | 14 | 6 | | 113 | |
| OSN 2022 | 11 | Radhya Cahya Kusuma | SMAN 3 Yogyakarta | 62 | 50 | 11 | 63 | 23 | 56 | | 265 | Perak |
| 17 | Danar Abiyoga Prakosa | SMA Kesatuan Bangsa | 62 | 50 | 20 | 18 | 40 | 36 | | 226 | Perunggu |
| 46 | Atila Ghulwani Altamis | SMAN 3 Yogyakarta | 38 | 25 | 5 | 18 | 23 | 26 | | 135 | |
| KSN 2021 | 6 | Daniel Anantadhirya Adyawisesa Linan | SMAN 1 Yogyakarta | 75 | 30 | 67 | 73 | 35 | 60 | | 340 | Perak |
| 21 | Nagata Parama Aptana | SMA Kesatuan Bangsa | 20 | 36 | 46 | 30 | 61 | 60 | | 253 | Perunggu |
| 28 | Polikarpus Arya Pradhanika | SMAN 3 Yogyakarta | 20 | 36 | 46 | 30 | 61 | 36 | | 229 | Perunggu |
| 39 | Radhya Cahya Kusuma | SMPN 8 Yogyakarta | 11 | 36 | 15 | 30 | 42 | 60 | | 194 | |
| 47 | Muhammad Kautsar Aryana Prasetya | SMAN 3 Yogyakarta | 11 | 19 | 46 | 30 | 42 | 18 | | 166 | |
| 83 | Evint Leovonzko | SMA Budi Utama | 0 | 5 | 0 | 8 | 25 | 7 | | 45 | |
| KSN 2020 | 36 | Nagata Parama Aptana | SMA Kesatuan Bangsa | 67 | 27 | 38 | 22 | 12 | 15 | | 181 | |
| 36 | Daniel Anantadhirya Adyawisesa Linan | SMAN 1 Yogyakarta | 60 | 27 | 38 | 22 | 24 | 10 | | 181 | |
| 54 | Muhammad Kautsar Aryana Prasetya | SMP Kesatuan Bangsa Bantul | 50 | 10 | 38 | 22 | 12 | 10 | | 142 | |
| OSN 2019 | 4 | Mirza Safaraz | SMAN 1 Yogyakarta | 77 | 75 | 52 | 84 | 52 | 82 | | 422 | Emas |
| 57 | Danindra Ario Wiryawan | SMAN 1 Yogyakarta | 12 | 14 | 31 | 27 | 19 | 15 | | 118 | |
| OSN 2018 | 10 | Fadhil Rasendriya Prabowo | SMAN 8 Yogyakarta | 100 | 20 | 19 | 34 | 55 | 30 | | 258 | Perak |
| 21 | Jauhar Wibisono | SMAN 3 Yogyakarta | 24 | 56 | 29 | 34 | 30 | 7 | | 180 | Perunggu |
| 25 | Ahmad Zidan | SMAN 1 Yogyakarta | 62 | 0 | 29 | 34 | 30 | 7 | | 162 | Perunggu |
| 33 | Mirza Safaraz | SMAN 1 Yogyakarta | 37 | 30 | 29 | 34 | 17 | 0 | | 147 | |
| 41 | Mufti Astu Naufal | SMA Kesatuan Bangsa | 14 | 20 | 29 | 34 | 21 | 7 | | 125 | |
| OSN 2017 | 10 | R. Fausta Anugrah Dianparama | SMAN 1 Yogyakarta | 74 | 36 | 25 | 34 | 61 | 43 | | 273 | Perak |
| 39 | Ahmad Zidan | SMAN 1 Yogyakarta | 26 | 15 | 16 | 34 | 22 | 12 | | 125 | |
| 51 | Fadhil Rasendriya Prabowo | SMAN 8 Yogyakarta | 30 | 15 | 16 | 13 | 16 | 0 | | 90 | |
| OSN 2016 | 16 | Dhipta Raditya Yudhasmara | SMA Kesatuan Bangsa | 100 | 25 | 22 | 76 | 72 | 0 | | 295 | Perunggu |
| 61 | Setyawan Putra Sujana | MA Mu'allimin Muhammadiyah Yogyakarta | 15 | 17 | 6 | 15 | 15 | 0 | | 68 | |
| 77 | Desya Anugrah Setya Putri | SMA Kesatuan Bangsa | 0 | 17 | 0 | 0 | 15 | 0 | | 32 | |
| OSN 2015 | 30 | Dhipta Raditya Yudhasmara | SMA Kesatuan Bangsa | 49 | 36 | 14 | 58 | 48 | 16 | | 221 | Perunggu |
| 39 | Alvin Farkhan Ramadhani | SMA Kesatuan Bangsa | 12 | 26 | 26 | 31 | 48 | 40 | | 183 | |
| OSN 2014 | 29 | Lantang Satriatama | SMAN 3 Yogyakarta | 31 | 100 | 18 | 18 | 20 | 18 | 37 | 7 | 249 | Perunggu |
| 31 | Dzar Bela Hanifa | SMAN 3 Yogyakarta | 8 | 100 | 18 | 20 | 20 | 18 | 19 | 21 | 224 | |
| 41 | Septasia Dwi Angfika | SMA Kesatuan Bangsa | 8 | 66 | 41 | 6 | 20 | 18 | 19 | 21 | 199 | |
| 50 | Rizky Agung D. P. | SMAN 1 Yogyakarta | 18 | 66 | 18 | 0 | 20 | 18 | 19 | 21 | 180 | |
| 52 | M. Raihan Wahyu Y. | SMA Kesatuan Bangsa | 10 | 66 | 18 | 0 | 20 | 18 | 37 | 7 | 176 | |
| 69 | Nikita Dika Melindha | SMAN 1 Bantul | 0 | 18 | 18 | 17 | 20 | 18 | 19 | 7 | 117 | |
| OSN 2013 | 44 | Conroy Surya Wijaya | SMAN 8 Yogyakarta | 31 | 29 | 18 | 58 | 31 | 18 | 18 | 0 | 203 | |
| 52 | Arif Fitrianto | SMAN 1 Bantul | 31 | 29 | 18 | 58 | 7 | 18 | 18 | 0 | 179 | |
| 52 | Dzar Bela Hanifa | SMAN 3 Yogyakarta | 31 | 29 | 18 | 58 | 7 | 18 | 18 | 0 | 179 | |
| 52 | Septasia Dwi Angfika | SMA Kesatuan Bangsa | 18 | 29 | 18 | 58 | 20 | 18 | 18 | 0 | 179 | |
| 70 | Tri Yunianta | SMAN 8 Yogyakarta | 18 | 29 | 0 | 34 | 0 | 18 | 18 | 3 | 120 | |
| 73 | Fadhilah Khairuna Larasati | SMAN 3 Yogyakarta | 18 | 9 | 9 | 18 | 20 | 18 | 18 | 0 | 110 | |
| OSN 2012 | 12 | Alfian Rismawan | SMAN 3 Yogyakarta | 45 | 20 | 25 | 0 | 30 | 20 | 36 | 18 | 194 | Perak |
| 55 | Achmad Jeihan Pahlevi | SMAN 1 Sewon | 30 | 10 | 15 | 0 | 15 | 0 | 21 | 18 | 109 | |
| 59 | Budi Triwibowo Yuli Widhyanto | SMAN 1 Bantul | 0 | 20 | 0 | 0 | 30 | 0 | 36 | 18 | 104 | |
| 65 | Annisa Riyani | SMAN 8 Yogyakarta | 15 | 20 | 10 | 0 | 15 | 0 | 21 | 18 | 99 | |
| 82 | Steffani Jessica Affandi | SMA Stella Duce 1 Yogyakarta | 0 | 0 | 0 | 0 | 30 | 0 | 0 | 18 | 48 | |
| OSN 2011 | 2 | Muhammad Yafi | SMAN 1 Yogyakarta | | 815 | Emas |
| 40 | Alfian Rismawan | SMAN 3 Yogyakarta | | 515 | |
| 48 | Arina Fatchurrohmah | SMAN 1 Yogyakarta | | 446 | |
| 49 | Aditya Wishnu Pradipta | SMAN 3 Yogyakarta | | 424 | |
| OSN 2010 | 4 | Cakra Wishnu Wardhana | SMAN 8 Yogyakarta | | 799 | Emas |
| 26 | Muhammad Yafi | SMAN 1 Yogyakarta | | 631 | Perunggu |
| 27 | Muhamad Hasan Imaduddin | SMAN 8 Yogyakarta | | 627 | Perunggu |
| 44 | Nahar Fitri Hidayat | SMAN 1 Yogyakarta | | 514 | |
| OSN 2009 | 9 | Mirza Widihananta | SMAN 3 Yogyakarta | | 635 | Perak |
| 15 | Dinara Enggar Prabakti | SMAN 1 Yogyakarta | | 552 | Perak |
| 17 | Muhammad Yafi | SMPN 8 Yogyakarta | | 550 | Perunggu |
| 23 | Paskasius Wahyu Wibisono | SMAN 1 Yogyakarta | | 510 | Perunggu |
| 32 | Muhammad Wachid Kusuma | SMAN 1 Yogyakarta | | 475 | |
| 40 | Muhammad Ramdan Izzulmakin | SMAN 1 Kalasan | | 455 | |
| 66 | Syafira Fitri Auliya | SMAN 3 Yogyakarta | | 317 | |
| 72 | Arif Widyatama | SMAN 3 Yogyakarta | | 285 | |
| OSN 2008 | 11 | Asyrof Qomarudin | SMAN 1 Yogyakarta | | 10713.16 | Perak |
| 17 | Bagus Seto Wiguno | SMAN 9 Yogyakarta | | 9427.89 | Perunggu |
| 39 | Dinara Enggar Prabakti | SMAN 1 Yogyakarta | | 7296.84 | |
| 46 | Akbar Dharmaputra | SMAN 3 Yogyakarta | | 6863.68 | |
| 52 | Muhammad Wachid Kusuma | SMAN 1 Yogyakarta | | 6211.05 | |
| OSN 2007 | 4 | Affath Firdausi | SMAN 3 Yogyakarta | | 3247.6 | Emas |
| 8 | Listiarso Wastuargo | SMAN 3 Yogyakarta | | 2981.8 | Perak |
| 25 | Toha Lukman Hakim | SMAN 3 Yogyakarta | | 2221.9 | Perunggu |
| 30 | Ageng Mufti Syafii Hakim | SMAN 1 Yogyakarta | | 2153.1 | Perunggu |
| 35 | Firdaus Ismail Sholeh | | | 2005.9 | |
| 38 | Asyrof Qomarudin | SMAN 1 Yogyakarta | | 1998.0 | |
| 78 | Khoirunnisa R. F. | | | 1036.7 | |
| OSN 2006 | 11 | Gerry Yulian | SMAN 3 Yogyakarta | 60 | 95 | 70 | 100 | | 8131 | Perak |
| 18 | B. Madaharsa Dito A. | SMAN 3 Yogyakarta | 25 | 100 | 70 | 100 | | 7695 | Perunggu |
| 23 | Gilda Ditya Asmara | SMAN 3 Yogyakarta | 65 | | 100 | 100 | | 6865 | Perunggu |
| Asyrof Qomarudin | | | | |
| Benedictus Hangga H. | | | | |
| Ageng Mufti Syafii Hakim | | | | |
| Mirza Oryza Ahmad | | | | |
| OSN 2005 | 22 | Pahlevi Fikri Auliya | SMAN 1 Yogyakarta | 20 | 90 | 0.00 | 1.52 | 66.67 | 0 | | 4375 | Perunggu |
| 31 | Muhammad Fiqri M. | SMAN 1 Yogyakarta | 30 | 20 | 0.00 | 53.03 | 53.33 | 0 | | 4026 | |
| 33 | Alfian Akbar Gojali | SMAN 1 Yogyakarta | 0 | 20 | 0.00 | 39.39 | 46.67 | 70 | | 3901 | |
| 34 | Affath Firdausi | SMPN 8 Yogyakarta | 50 | 30 | 0.00 | 25.76 | 26.67 | 25 | | 3822 | |
| 40 | Danang Nur Wicaksono | SMAN 1 Yogyakarta | 50 | 20 | 0.00 | 36.36 | 40.00 | 0 | | 3588 | |
| 41 | Laksono Kurnianggoro | SMAN 3 Yogyakarta | 0 | 20 | 6.25 | 42.42 | 53.33 | 0 | | 3585 | |
| 42 | B. Hangga Harinawantara | SMAN 3 Yogyakarta | 0 | 30 | 0.00 | 54.55 | 13.33 | 15 | | 3577 | |
| 69 | F. X. William Riyanto | SMA Kolose De Britto Yogyakarta | 0 | 10 | 6.25 | 0.00 | 0.00 | 0 | | 1926 | |
| OSN 2004 | 8 | Anugerah Galang Persada | SMAN 3 Yogyakarta | | | Perak |
| 12 | Hanson Prihantoro Putro | SMAN 3 Yogyakarta | | | Perak |
| 18 | Wiradeva Arif Kristawarman | SMAN 3 Yogyakarta | | | Perunggu |
| 23 | Dominikus Damas Putranto | | | | Perunggu |
| 39 | Okie Primatyo | SMAN 3 Yogyakarta | | | |
| 56 | Aaron Brata Aditama | | | | |
| OSN 2003 | 17 | Andita Surya Hartono | SMAN 3 Yogyakarta | 0 | 100 | 0 | | 100 | Perunggu |
| 34 | Anugerah Galang Persada | SMAN 3 Yogyakarta | 0 | 40 | 0 | | 40 | |
| 43 | Wiradeva Arif Kristawarman | SMAN 3 Yogyakarta | 0 | 20 | 4 | | 24 | |
| 46 | Okie Primatyo | SMAN 3 Yogyakarta | 0 | 20 | 0 | | 20 | |
| 51 | Hanson Prihantoro Putro | SMAN 3 Yogyakarta | 0 | 20 | 0 | | 20 | |
| 56 | Aditya Putra Nugraha | SMAN 3 Yogyakarta | 0 | 10 | 0 | | 10 | |
| 59 | Andika Laksmana Kurniadi | SMAN 3 Yogyakarta | 0 | 0 | 0 | | 0 | |