The term 'Spain Peninsula In' can be solved by the crossword solution IBERIA, which is a 6-letter word. IBERIA is a peninsula located in southwestern Europe, and is the second largest peninsula in Europe after the Scandinavian Peninsula. It is bordered by the Mediterranean Sea to the south and the Atlantic Ocean to the west. The peninsula is home to the countries of Spain and Portugal, as well as parts of France, Andorra, and Morocco.