Gamba Osaka booked their place at the FIFA Club World Cup Japan 2008 after a 5-0 aggregate win over Adelaide United in the two-legged final of the AFC Champions League. The J.League side won their home leg 3-0 on 5 November and swiftly followed that success with a 2-0 win in Adelaide on 12 November.

Manchester United qualified for the FIFA Club World Cup on Wednesday 21 May 2008 after a 6-5 penalty shoot-out win over Chelsea in Moscow, following a 1-1 draw after extra-time.

New Zealand's Waitakere United qualified for their second successive FIFA Club World Cup by retaining their O-League title, beating Kossa of the Solomon Islands 6-3 on aggregate over two legs played out on 26 April and 11 May.

LDU Quito (ECU) will be the South American representative at the FIFA World Club Cup 2008. They qualified by defeating Fluminense (BRA) 3-1 on penalties after a 5-5 aggregate tie in the final of the Copa Libertadores.

In accordance with the regulations of the the FIFA Club World Cup Japan 2008, it was agreed that if a Japanese team won the AFC Champions League, the host representative team would be replaced by the highest placed non-Japanese team from the 2008 edition of the AFC Champions League. Gamba Osaka's triumph in the AFC Champions League final has paved the way for runners-up, Adelaide United, to participate in December's tournament.