Ƙungiyar Iberian tana nufin ƙungiyar dynastic na Masarautar Castile da Aragon da Masarautar Portugal a ƙarƙashin Kambin Castilian wanda ya kasance tsakanin 1580 zuwa 1640 kuma ya kawo dukan tsibirin Iberian, da kuma mallakar Portuguese na ketare, a ƙarƙashin Sarkin Habsburg na Spain Philip. II, Philip III da kuma Philip IV.Ƙungiyar ta fara ne bayan rikicin maye gurbi na Portugal da kuma yaƙin da ya biyo baya na maye gurbin Portugal, kuma ya daɗe har zuwa lokacin da aka kafa gidan Braganza a matsayin sabuwar daular Portugal.Sarkin Habsburg, shine kawai abin da ya haɗu da masarautu da yankuna da yawa, waɗanda majalisun gwamnatoci daban-daban guda shida na Castile, Aragon, Portugal, Italiya, Flanders da Indies suka mulki.Gwamnatoci, cibiyoyi da al'adun doka na kowace masarauta sun kasance masu zaman kansu ba tare da juna ba.Dokokin Alien (Leyes de extranjería) sun ƙaddara cewa ɗan ƙasa na masarauta ɗaya baƙo ne a duk sauran masarautu.