Dennis Novak (German pronunciation: ['d?n?s 'no?vak]; born 28 August 1993, in Wiener Neustadt) is an Austrian tennis player.
Novak achieved a career high ATP singles ranking of world No.
104 in June 2019.
Novak made his ATP main draw debut at the 2013 Bet-at-home Cup Kitzbühel where he defeated Matthias Haim, Lorenzo Giustino and Tihomir Grozdanov in the qualifying rounds.
In the main draw, he lost to compatriot Andreas Haider-Maurer.
In April 2019, he won his first ATP Challenger Tour title in Taipeh.