Hi, I'm from Spain. As far as I know there aren't many pipe tobaccos only available or produced here in Spain. What you can find is mostly european brands like Dunhill, Borkum Riff, Mac Baren, etc.
There are however a few spanish brands: Colonial Dan produces a few different mixtures, but I can't say if they're any good since I haven't tried any.
There's also Amsterdamer which was produced by Tabacalera (the spanish company that had the monopoly on tobacco in the country) until 1999 and now by Altadis. I have smoked it and, frankly, it's quite bad.
There are probably a few other "local" brands, but nothing to write home about.
Here you can find a list with all the available pipe tobaccos in the country (there are also hookah tobaccos, since under spanish law they are classified as pipe tobacco), maybe it helps:http://www.cmtabacos.es/wwwcmt/paginas/EN/mercadoPrecios.tmpl You must select "Mainland and Balearic Island", then "Pipe tobacco" and then click on "Consultar precios".