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.

[5] Maiquel Falcão was scheduled [6] to take on Tom Lawlor at this event, but was released from the promotion in regard to a 2002 assault charge.

[8] Mackens Semerzier was expected to face Iuri Alcântara at the event,[9] but was replaced by UFC newcomer Antonio Carvalho.

[13] Mike Swick was scheduled to make his return against debuting Erick Silva on this card.

[16] The UFC 134 Live Prelims aired on Spike TV and were simultaneously broadcast on the digital sign above the Doubletree Hotel in the "Little Brazil" section of Times Square in New York City.