I'm addicted to Scandinavian horror. I know people who strictly like French or Australian. There is something about a culture's ability to present horror that brings something new and fresh to it.
Here's some countries and a sample of their horror films:
These are harsh, barren, detached and disturbing--
"Let the Right One In" (my favorite vampire)
"Dead Snow" (my fav zombie)
"Sauna" (my fav drama/horror/historical)
"Troll Hunter" (one of my favs of all time!)
These are gothic and atmospheric, sexy and forbidden--
These are usually legend-driven and spirit/technology related--
"One Missed Call"
These are gritty, rough, psychologically draining, harsh, and repentant.
These are fast-paced, rough, stylish, and have a twist --
"In My Skin"
Honestly, if you tend to like indie horror because you're sick of the milked down crap the big studios do--definitely go foreign! It's like finding hardcore porn after watching "Red Shoe Diaries" continually for years. It kick-starts your love of horror all over again with novel approaches, new settings, and faces you don't know from a zillion other films.