The 2005–06 World Sevens Series was the seventh edition of the global circuit for men's national rugby sevens teams, run by the International Rugby Board since 1999-2000. The series was won by Fiji in the last event of the competition, ending New Zealand's 6-year run as series champions. Fiji needed to finish in fifth place or higher at the London Sevens to ensure that they would win the series ahead of England, but won the tournament handily with 54–14 victory over Samoa in the final.