2018 CS Ondrej Nepela Trophy

The 2018 CS Ondrej Nepela Trophy was held on September 19–22, 2018, at the Ondrej Nepela Arena in Bratislava, Slovakia. It was part of the 2018–19 ISU Challenger Series. Medals were awarded in men's singles, women's singles, pair skating, and ice dance.

Entries
The International Skating Union published the list of entries on August 27, 2018.

Pairs
Note: For this category, the 2018 Ondrej Nepela Trophy was not considered a Challenger Series event, since the minimum required number of entries for a Challenger Series event was not reached.