The third round of OFC matches for 2018 FIFA World Cup qualification began on 7 November 2016 and ended on 5 September 2017.
The draw for the third round was held on 8 July 2016, 11:00 NZST (UTC+12), at the OFC headquarters in Auckland, New Zealand.
The fixtures of each group were confirmed by the OFC after the draw, taking into account the need for New Zealand to have a bye in June 2017 for playing in the 2017 FIFA Confederations Cup, and Papua New Guinea to have a bye in November 2016 for hosting the 2016 FIFA U-20 Women's World Cup.
Italicised teams qualified for the OFC final but lost.
The draw for the final (which decided the order of legs) was held on 15 June 2017, 16:00 NZST (UTC+12), at the OFC headquarters in Auckland, New Zealand.