Ika sōmen is a traditional dish originating from Hakodate, Hokkaido. Although the word ika means squid and the word sōmen refers to the famous wheat flour noodles, this is actually a seafood dish in which raw squid is thinly sliced and cut into the shape of noodles, as a type of sashimi.

Once prepared, it's served with grated ginger and soy sauce on the side. There are also variations that replace the soy sauce with a combination of uni and soy sauce or wasabi and soy sauce. When eating ika sōmen, it's recommended to slurp up the sliced squid, just like noodles should be eaten.