Oppolzer is a surname of Austrian origin.
Most people with the surname Oppolzer have their ancestors in a small region in Southern Bohemia, which was Austrian in former times, but belongs to the Czech Republic today.
There is also a small village with an old fort called Oppolz[1] (Czech name Tycha) in this region.
Famous Oppolzers are Both Johann and Theodor lived and worked in Vienna most of the time of their lives.
There is a lunar crater called Oppolzer, and an asteroid.