UFC 134: Silva vs. Okami (also known as UFC Rio) was a mixed martial arts (MMA) pay-per-view event held by the Ultimate Fighting Championship on August 27, 2011 at the HSBC Arena in Rio de Janeiro, Brazil. The event was the second that the UFC has hosted in Brazil, since 1998's UFC 17.5: Ultimate Brazil. UFC 134 was awarded the 2011 event of the year by Sherdog.