Tony DeSouza is a Peruvian fighter best known for his use of the Peruvian necktie submission and for his stint in the UFC, in which he was cut from the promotion's roster after back-to-back losses to Thiago Alves and Roan Carneiro. His last fight, the Carneiro fight, was in 2007 and it is believed that he is unofficially retired.
- Tony DeSouza vs. Steve Berger - The fight was DeSouza's UFC debut.
- Jutaro Nakao vs. Tony DeSouza - The fight was the UFC debut of Jutaro Nakao and the first loss of Tony DeSouza.
- Tony DeSouza vs. Chatt Lavender
- Tony DeSouza vs. Luis Azeredo
- Thiago Alves vs. Tony DeSouza - After the fight, Thiago Alves tested positive for banned diuretics and was suspended for eight months by the NSAC and fined $5,500.
- Roan Carneiro vs. Tony DeSouza - The fight was DeSouza's last fight since 2007, and he was presumably cut from the UFC after the fight.