I think many have heard of "sashi-mi", or fine cuts of raw fish to be eaten straight, but the Japanese tend to eat other meats raw as well. Even chicken and beef will occasionally be eaten raw in very small quantities.
One thing that was a kind of double surprise for me when I first came to Japan was "ba-sashi", which is raw slices of horse meat. I hadn't even eaten horse before, let alone considered eating raw pieces of it.
It's very delicious, and usually enjoyed like fish sashimi with a small amount of soy sauce. Basashi however goes very well with a bit of ginger either mixed in the soy sauce, or plopped directly onto the piece of meat.