The 2017 CS Ondrej Nepela Trophy was held in September 2017.

It is an annual senior international figure skating competition held in Bratislava, Slovakia.

It was part of the 2017–18 ISU Challenger Series.

[1] Medals will be awarded in the disciplines of men's singles, ladies' singles, pair skating, and ice dance.

The International Skating Union published the full preliminary list of entries on 24 August 2017.