prussianwolf

I am trying to work out the ethnicity/Nationality some of my ancestors were.
maybe you can help me out.

They were born around the 1860s in Bohemia then apart of the Austrian Empire now Czech Republic in the 1880s they moved to Vienna Austria and stayed there.

some of their names were

Johann Weinar/ Vejnar

Franz Nadvornik

Anna Haman

Maria Petera

other surnames were, Burda, Peceny, Petera, Jansa
ALL had German first names

What nationality or ethnicity so you think they were?

arras

German.

Slavic. "Dvor" mean "yard" (nex to a house) and "na" means "on". So something like "on yard man".

No idea, are you sure you wrote it right? But more German than Czech I guess.

Also very strange name. "Peter" means in Slavic same as in English, just pronounced differently. "a" would make it feminine. However proper feminine from "Peter" in Slavic is "Petra" (common female name).

Slavic I guess.

Slavic. Means "baked".

As I said very strange, but probably Slavic. If you got it right.

Not sure.

That does not mean much. Depending on official custom, first names could have been written in one form or another. Official document form does not indicate nationality in those times. Those people could have been Czechs but because Bohemia was under Hapsburgs, their names could have been written in German form on official documents like birth certificates. And so Ján could have been written as Johan, František as Franz, Anna and Maria are same both in German and Czech.

Yôḥānān

The surname Petera exists just Google it.

arras

Gave me very few results. But yes, apparently there are few people with this surname in Bohemia and Slovakia.

Still, very unusual name for this region.

prussianwolf

Haman is related to the surname hamann so i have been told.
Haman is a common surname in bohemia.

Would them moving to Lower Austria indicate they in some way associated with German Austrian culture ?

arras

It does not indicate their original nationality. People could resettle freely around whole Austro-Hungarian empire and indeed many did, most of them for simple economic reasons.

However they could assimilate once in Austria.

If your ancestors have Czech surnames, they clearly comes from Czech origins. There is no other way they could obtain Czech names otherwise. Some of their male ancestors had to be Czechs.

However in case of those concrete people whom you mentioned, surname does not indicate what ethnicity they were. Just origin somewhere in the past.

What is quit sure is that you have some Czech blood. Hard to say how much however.