| Robin Lee | 22 | 5.2Medium |
| Roger Henriksson | 1 | 4.9Medium |
| Rohit Nema | 2 | 3.4Medium |
| Rongqi Qiu | 2 | 7.4Hard |
| Rudy van Vliet | 1 | 5.8Hard |
| Rujia Liu | 5 | 4.1Medium |
| Ruth Risberg | 2 | 3.5Medium |
| Ryan Farrell | 3 | 3.6Medium |
| Ryan Henning | 2 | 5.5Hard |
| Ryan Marshall | 5 | 3.7Medium |
| Ryan Tjoa | 1 | 5.2Medium |
| Saarthak Sharma | 1 | 5.2Medium |
| Saketh Are | 1 | 5.2Medium |
| Samuel Furman | 3 | 3.7Medium |
| Samuel Tardieu | 1 | 6Hard |
| Samúel Arnar Hafsteinsson | 9 | 2.5Easy |
| Sander Alewijnse | 1 | 9.1Hard |
| Sander Land | 1 | 7.2Hard |
| Sandra Schumann | 1 | 6.2Hard |
| Sandro Esquivel | 1 | 6.1Hard |
| Sara Dögg Sigurðardóttir | 1 | 4Medium |
| Scott McGowan | 1 | 4Medium |
| Sean McCulloch | 3 | 6.9Hard |
| Sebastian Angrick | 1 | 5.1Medium |
| Serikzhan Kazi | 1 | 5.9Hard |
| Serikzhan S. Kazi | 1 | 2.8Medium |
| Shafaet Ashraf | 1 | 9.3Hard |
| Shaheed Ebrahim | 1 | 3.2Medium |
| Shahriar Manzoor | 1 | 6Hard |
| Shang-En Huang | 1 | 6.5Hard |
| Shantanu Modak | 3 | 4.3Medium |
| Shiplu Hawlader | 1 | 4.6Medium |
| Shubham Kumar | 2 | 6.3Hard |
| Sidhant Bansal | 2 | 2.6Easy |
| Sidney Cadot | 1 | 2.9Medium |
| Sigurður Helgason | 1 | 1.8Easy |
| Sigurður Jens Albertsson | 5 | 4.9Medium |
| Silviu Maniu | 2 | 3.9Medium |
| Simanta Mitra | 1 | 4.2Medium |
| Simon Klein | 1 | 6.3Hard |
| Simon Lindholm | 33 | 6.9Hard |
| Sondre Sortland | 2 | 6.1Hard |
| Sonny Chan | 6 | 5.4Medium |
| Spencer Pao | 1 | 2Easy |
| Stefan Büttcher | 3 | 4.9Medium |
| Stefan Kraus | 1 | 3.4Medium |
| Stefan Pszczolkowski | 1 | 2.1Easy |
| Stefan Toman | 1 | 1.9Easy |
| Stein Norheim | 7 | 5.8Hard |
| Steph Cheng | 1 | 7Hard |
| Steven Halim | 24 | 4.9Medium |
| Steven Wijaya | 2 | 7.5Hard |
| Steven Zeil | 11 | 5.3Medium |
| Stjepan Glavina | 2 | 4.9Medium |
| Stjepan Požgaj | 1 | 5.9Hard |
| Stuart Hansen | 1 | 3.3Medium |
| Suhas Nagar | 17 | 6.8Hard |
| Suhendry Effendy | 1 | 1.5Easy |
| Surya Subbarao | 1 | 4.8Medium |
| Svetoslav Tzvetkov | 1 | 8Hard |
| Swen Gaudl | 1 | 6.6Hard |
| Synopsys | 3 | 4.8Medium |
| Syx Pek | 7 | 5.8Hard |
| Sérgio Crisóstomo | 2 | 4.5Medium |
| Tan Jun An | 2 | 3.8Medium |
| Tanner Hoke | 1 | 3.9Medium |
| Taylor Wong | 3 | 5.9Hard |
| Teow Hua Jun | 6 | 7Hard |
| The 2023 ICPC World Finals judges | 1 | 5.5Hard |
| Theodor Beskow | 2 | 7.8Hard |
| Thierry Lavoie | 3 | 4.8Medium |
| Thijs van Ommen | 1 | 8.2Hard |
| Thomas Beuman | 6 | 7.1Hard |
| Thomasz Idziaszek | 1 | 5Medium |
| Thor Eriksen | 1 | 9.2Hard |
| Thore Husfeldt | 40 | 4.5Medium |
| Timon Knigge | 21 | 5.2Medium |
| Tobias Lenz | 1 | 6.6Hard |
| Tobias Werth | 6 | 4.1Medium |
| Tom Fuller | 1 | 2Easy |
| Tom Rokicki | 2 | 4.9Medium |
| Tom Verhoeff | 1 | 2.3Easy |
| Tomas Rokicki | 5 | 4.2Medium |
| Tommy Färnqvist | 3 | 4.3Medium |
| Tonko Sabolčec | 1 | 3.2Medium |
| Tony Cai | 12 | 4.7Medium |
| Tony Xia | 4 | 2.2Easy |
| Torbjørn Morland | 21 | 4.9Medium |
| Torstein Strømme | 16 | 4.4Medium |
| Travis Meade | 10 | 5.9Hard |
| Troels Bjerre Lund | 3 | 6.7Hard |
| Troy Vasiga | 3 | 4.4Medium |
| Truls A. Björklund | 1 | 2.1Easy |
| Truls Amundsen Bjørklund | 1 | 1.7Easy |
| Tung Kam Chuen | 10 | 6.3Hard |
| Tung Nguyen | 1 | 6.7Hard |
| Tähvend Uustalu | 1 | 6.8Hard |
| Tómas Ken Magnússon | 8 | 3.9Medium |
| Ulf Lundström | 23 | 4.8Medium |
| Ulle Endriss | 1 | 4.9Medium |
