2017–18 ISU Challenger Series

The 2017–18 ISU Challenger Series was held from September to December 2017. It was the fourth season that the ISU Challenger Series, a group of senior-level international figure skating competitions, was held.

Competitions
This season, the series included the following events.

Challenger Series rankings
The ISU Challenger Series rankings were formed by combining the two highest final scores of each skater or team.