Giải vô địch bóng đá U-20 thế giới 2019
Trọng tài

Tổng cộng có 21 bộ, mỗi bộ gồm 3 trọng tài (1 trọng tài và 2 trợ lý), 6 trọng tài hỗ trợ và 20 trợ lý trọng tài video đã được chỉ định cho giải đấu.
| Liên đoàn | Trọng tài | Trợ lý | Hỗ trợ | Trợ lý video |
| --- | --- | --- | --- | --- |
| AFC |  Ahmed Al-Kaf |  Abu Bakar Al-Amri  Rashid Al-Ghaithi |  Ilgiz Tantashev |  Ammar Al-Jeneibi  Khamis Al-Marri  Fu Ming |
| AFC |  Muhammad Taqi |  Min Kiat Koh  Abdul Hannan |  Ilgiz Tantashev |  Ammar Al-Jeneibi  Khamis Al-Marri  Fu Ming |
| AFC |  Adham Makhadmeh |  Ahmad Al-Roalle  Mohammad Al-Kalaf |  Ilgiz Tantashev |  Ammar Al-Jeneibi  Khamis Al-Marri  Fu Ming |
| CAF |  Mustapha Ghorbal |  Mahmoud Ahmed Kamel  Mokrane Gourari |  Pacifique Ndabihawenimana |  Bakary Gassama  Gehad Grisha  Bamlak Tessema Weyesa |
| CAF |  Maguette N'Diaye |  Elvis Noupue  Seydou Tiama |  Pacifique Ndabihawenimana |  Bakary Gassama  Gehad Grisha  Bamlak Tessema Weyesa |
| CAF |  Jean-Jacques Ndala Ngambo |  Olivier Safari  Souleimane Amaldine |  Pacifique Ndabihawenimana |  Bakary Gassama  Gehad Grisha  Bamlak Tessema Weyesa |
| CONCACAF |  Ismail Elfath |  Kyle Atkins   Corey Parker |  Ivan Barton |  Adonai Escobedo |
| CONCACAF |  Fernando Guerrero |  Pablo Hernández  José Martínez |  Ivan Barton |  Adonai Escobedo |
| CONCACAF |  Héctor Martínez |  Walter López  Helpys Feliz |  Ivan Barton |  Adonai Escobedo |
| CONMEBOL |  Raphael Claus |  Danilo Manis  Bruno Pires |  Joel Alarcón |  Julio Bascuñán  Andrés Rojas  Wilton Sampaio  Jesús Valenzuela  Gery Vargas |
| CONMEBOL |  Leodán González |  Richard Trinidad  Martín Soppi |  Joel Alarcón |  Julio Bascuñán  Andrés Rojas  Wilton Sampaio  Jesús Valenzuela  Gery Vargas |
| CONMEBOL |  Alexis Herrera |  Jorge Urrego  Tulio Moreno |  Joel Alarcón |  Julio Bascuñán  Andrés Rojas  Wilton Sampaio  Jesús Valenzuela  Gery Vargas |
| CONMEBOL |  Fernando Rapallini |  Diego Bonfá  Gabriel Chade |  Joel Alarcón |  Julio Bascuñán  Andrés Rojas  Wilton Sampaio  Jesús Valenzuela  Gery Vargas |
| OFC |  Abdelkader Zitouni |  Folio Moeaki  Bernard Mutukera |  David Yareboinen | — |
| UEFA |  Benoît Bastien |  Hicham Zakrani  Frédéric Haquette |  Sandro Schärer |  Artur Soares Dias  Marco Guida  Alejandro Hernández Hernández  Alan Kelly  Juan Martínez Munuera  Benoît Millot  Paweł Raczkowski  Pol van Boekel |
| UEFA |  Jesús Gil Manzano |  Ángel Nevado Rodríguez  Diego Barbero Sevilla |  Sandro Schärer |  Artur Soares Dias  Marco Guida  Alejandro Hernández Hernández  Alan Kelly  Juan Martínez Munuera  Benoît Millot  Paweł Raczkowski  Pol van Boekel |
| UEFA |  Ivan Kružliak |  Tomaš Somoláni  Branislav Hancko |  Sandro Schärer |  Artur Soares Dias  Marco Guida  Alejandro Hernández Hernández  Alan Kelly  Juan Martínez Munuera  Benoît Millot  Paweł Raczkowski  Pol van Boekel |
| UEFA |  Davide Massa |  Filippo Meli  Fabiano Preti |  Sandro Schärer |  Artur Soares Dias  Marco Guida  Alejandro Hernández Hernández  Alan Kelly  Juan Martínez Munuera  Benoît Millot  Paweł Raczkowski  Pol van Boekel |
| UEFA |  Michael Oliver |  Simon Bennett  Stuart Burt |  Sandro Schärer |  Artur Soares Dias  Marco Guida  Alejandro Hernández Hernández  Alan Kelly  Juan Martínez Munuera  Benoît Millot  Paweł Raczkowski  Pol van Boekel |
| UEFA |  Daniel Siebert |  Jan Seidel  Rafael Foltyn |  Sandro Schärer |  Artur Soares Dias  Marco Guida  Alejandro Hernández Hernández  Alan Kelly  Juan Martínez Munuera  Benoît Millot  Paweł Raczkowski  Pol van Boekel |
| UEFA |  Slavko Vinčić |  Tomaž Klančnik  Andraž Kovačič |  Sandro Schärer |  Artur Soares Dias  Marco Guida  Alejandro Hernández Hernández  Alan Kelly  Juan Martínez Munuera  Benoît Millot  Paweł Raczkowski  Pol van Boekel |