The 2017–18 World Rugby Women's Sevens Series was the sixth edition of the global circuit for women's national rugby sevens teams, organised by World Rugby.

The top-ranked teams at each tournament play off for a Cup, with gold, silver and bronze medals also awarded to the first three teams.

Lower-ranked teams at each tournament play off for a Challenge Trophy.

[1] The overall winner of the series was determined by points gained from the standings across all events in the season.

[2] The "core teams" qualified to participate in all series events for the 2017–18 series were:[3] One additional core team qualified through winning the 2017 Hong Kong Women's Sevens:[4] There were five tournaments in 2017–18:[5] Official standings for the 2017–18 series: Source: World Rugby Tallies of top four tournament placings during the 2017–18 series, by team: Updated: 10 June 2018