| Year: | 2005 |
| Dates: | 10 February – 10 June 2005 |
| Num Teams: | 13 |
| Associations: | 12 |
| Champion Other: |  Sydney FC |
| Count: | 1 |
| Second Other: |  AS Magenta |
| Matches: | 24 |
| Goals: | 110 |
| Top Scorer: | David Zdrilic 9 goals |
| Prevseason: | 2001 |
| Nextseason: | 2006 |
The 2005 OFC Club Championship was the 4th edition of the top-level Oceanic club football tournament organized by the Oceania Football Confederation (OFC), and the 1st since 2001. The tournament was held in Papeete, Tahiti. The preliminary rounds were played from 10 February until 6 April 2005, with the finals beginning on 30 May and ending on 10 June 2005.
The tournament was initially planned to take place in September 2002, in anticipation of the upcoming FIFA Club World Championship in the following year, in order to decide which team would represent Oceania at the tournament. However, this tournament was cancelled, and therefore so too was the Oceanic competition. With the return of the tournament in 2005, the OFC Club Championship went ahead, and the winner went on to represent Oceania at the 2005 FIFA Club World Championship.
The winner of the tournament was Sydney FC of Australia, who beat AS Magenta of New Caledonia in the final.
The following teams entered the competition.
| Association | Team | Qualifying method | |
|---|---|---|---|
| Teams entering the group stage | |||
| Australia | Sydney FC | 2005 Australian Club World Championship Qualifying Tournament winner | |
| Tahiti | AS Manu Ura | 2003–04 Tahiti Division Fédérale champion | |
| AS Pirae | 2003–04 Tahiti Division Fédérale runner-up | ||
| Teams entering the preliminary round | |||
| American Samoa | Manumea FC | 2003 ASFA Soccer League champion | |
 Cook Islands | Nikao Sokattak | 2004 Cook Islands Round Cup champion | |
| Fiji | Ba Electric | 2004–05 Fiji Club Franchise League champion | |
| New Caledonia | AS Magenta | 2003–04 New Caledonia Super Ligue champion | |
 New Zealand | Auckland City | 2004–05 New Zealand Football Championship grand final champion | |
 Papua New Guinea | Sobou FC | 2004 Papua New Guinea National Club Championship champion | |
| Samoa | Tuanaimato Breeze | 2004 Samoa National League champion | |
| Solomon Islands | Makuru FC | 2004 Honiara FA League champion | |
| Tonga | Lotoha'apai United | 2004 Tonga Major League champion | |
| Vanuatu | Tafea FC | 2004 Port Vila Football League champion | |
A preliminary round was held, with the format being a two-legged playoff to determine who went through to the final round. The Australian representative (Sydney FC), as the representative of the strongest OFC Nation, and the two Tahitian Teams (AS Pirae and AS Manu Ura), as hosts, were seeded to the main draw.
The travelling team played two matches in the host country. The aggregate scores are shown.
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Magenta won 9 - 1 on aggregate.----Sobou won 7 - 0 on aggregate.----Tafea won 7–1 on aggregate.----Makuru won 8–2 on aggregate.
The eight remaining teams were separated into two groups, each team playing the other teams once. The top two teams from each group progressed to the semifinals.
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See main article: 2005 Oceania Club Championship Final.
NB: This table does not include Preliminary round results