My impression is that a Doll's House and Ghosts are much better known in the English speaking world. Enemy of the People too--probably because of the punchy title.
Interesting, over here I would say et Dukkehjem (a doll's house), Vildanden (the wild duck), and Peer Gynt are his most known works, probably not-very-closely followed by en folkefiende (Enemy of the people). Fascinating.