40 Séasúr
625 Eachtra
The Challenge - Season 21
- Bliain: 2024
- Tír: Australia, United States of America
- Seánra: Reality
- Stiúideo: MTV
- Eochairfhocal: competition, reality competition
- Stiúrthóir: Jonathan Murray, Mary-Ellis Bunim
- Caitheadh: Darrell Taylor, Devin Walker-Molaghan, Horacio Gutiérrez, Johnny 'Bananas' Devenanzio, Jordan Wiseley, Aneesa Ferreira