Jonna Danielle Mannion (born November 10, 1988) is an American reality TV personality, best known for her appearances on the MTV reality television series The Real World: Cancun, and the Real World spinoff show The Challenge. She has also appeared on other television shows including the reality competition show Endurance which she won, and the docudrama Rehab: Party at the Hard Rock Hotel on TruTv.
Mannion was placed into foster care with a very religious family when she was four years old. She was adopted by another family at the age of nine, who she continued to live with until she was 18. Mannion gave birth to her daughter, Naleigh J, in August 2016.
Mannion first started her television career at the age of thirteen competing on the reality competition show Endurance on Discovery Kids. She and her partner Aaron Thornburg won the competition against nine other boy/girl pairs, which earned them a trip to the Amazon, where the reunion was also filmed. Mannion hoped that her reality television debut performance would lead to her getting more time in front of the cameras. Seven years later, this came to fruition.