Eric B.
Yelp
I stopped here (and Gayle waited outside) during our recent visit to Donastia/San Sebastian. There's lots to see in the display window before you even get inside. My specific interest were Spanish folders in the unique Navaja style (with the little lever on the back). Of course, knife prices have a large range, and there were plenty of economical attractive and functional ones.
Inside are a variety of different brands, related kitchen stuff, sharpening services, and folks who really know their cutlery. I personally find country-specific knives to be an interesting and fascinating shopping opportunity, of which you'll find here.