The Dynamic Billard Klagenfurt Open 2018 (sometimes known as the 2018 Austrian Open) was the fifth and penultimate Euro Tour 9-Ball pool event in 2018. The event was won by Austria's Mario He who defeated England's Mark Gray 9–8 in the final. This was He's 4th championship, and second of the Euro Tour season - having already won the 2018 Veldhoven Open. Ralf Souquet was the defending champion, after having won the 2017 Klagenfurt Open, but lost matches to Kim Laaksonen and Maksim Dudanets in the double elimination round.