Wallner is a surname. It is common in Austria, on its own or in longer names, for example "Haubenwallner". Sometimes it is referred to as a variant of the German name "Waldner". Notable people with the surname include:
Anna Wallner (born 1969), Canadian television host Erika Wallner (1941-2016), Argentine actress Fred Wallner, American football player Hans Wallner, Austrian ski jumper Johan Wallner (born 1965), Swedish skier Manuel Wallner (born 1988), Austrian footballer Marina Wallner, German skier Mary Jane Wallner (born 1946), American politician Matt Wallner (born 1997), American baseball player Roman Wallner (born 1982), Austrian football player Silvan Wallner (born 2002), Swiss footballer Valentina Wallner (born 1990), Swedish ice hockey player