The AFC Fifth Round of 2010 FIFA World Cup qualification was held on 5 and 9 September 2009 between the two teams that finished third in the fourth round. The order for the matches was decided by a random draw held on 2 June 2009 during the FIFA Congress in Nassau, the Bahamas.
The winning team advanced to a play-off against the winner of the OFC qualifying group, New Zealand. The winner of this play-off qualified for the 2010 World Cup finals.
The winner switched twice during the stoppage time in the second leg: before the stoppage time, the score was tied by 1-1 and therefore Bahrain had an advantage by away goals rule. In the first minute of the stoppage time, Saudi Arabia pulled the advantage to themselves by Hamad Al-Montashari. However, this was reversed again by Bahraini Ismael Abdullatif in the third minute of the stoppage time and Bahrain progressed on away goals.
2–2 on aggregate; Bahrain advanced on the away goals rule.