Competitors for 2023 World Junior Figure Skating Championships
| Athlete | Country | Sports | Date of birth |
|---|---|---|---|
| Sophia Baram |  USA |
FSK | 24 November 2008 |
| Nadiia Bashynska |  CAN |
FSK | 15 November 2003 |
| Peter Beaumont | CAN |
FSK | 24 July 2001 |
| Hektor Giotopoulos Moore |  AUS |
FSK | 25 June 2002 |
| Anastasia Golubeva | AUS |
FSK | 3 January 2006 |
| Ivan Khobta |  UKR |
FSK | 31 July 2003 |
| Hannah Lim |  KOR |
FSK | 19 November 2004 |
| Kao Miura |  JPN |
FSK | 8 June 2005 |
| Daniel Mrázek |  CZE |
FSK | 15 May 2003 |
| Kateřina Mrázková | CZE |
FSK | 25 August 2006 |
| Ami Nakai | JPN |
FSK | 27 April 2008 |
| Ye Quan | KOR |
FSK | 15 October 2001 |
| Naoki Rossi |  SUI |
FSK | 20 January 2007 |
| Violetta Serova | UKR |
FSK | 24 February 2007 |
| Mao Shimada | JPN |
FSK | 30 October 2008 |
| Sin Ji-A | KOR |
FSK | 19 March 2008 |
| Daniel Tioumentsev | USA |
FSK | 14 March 2002 |
| Nozomu Yoshioka | JPN |
FSK | 15 December 2003 |