Yammacin Asiya,Asiya ta Yamma,Kudu maso Yamma da Asiyashine yankin yammaci na nahiyar Asiya.Ana takaitawa ace yammacin Asiya,amma ana iya fadadawa wajen fadin Gabas ta Tsakiya,anan kuma akan hada ne harda dukkannin yankunan kasar Misira da kuma yankin Turkiyya Turai. Adadin yawan mutane a yankin yammacin Asiya an kiyasta zai kai miliyan 300 a kiyasin da akayi na shekarar 2015.. . A farkon karni na 19 ana amfani da Kalmar yammacin asiya ne wajen bambancewa tsakanin yanayin muhallai na nahiyar Asiya da kuma bambance tsakanin iyakoki na kasashen da suka shafi yankin. Amma dai dukda haka ana daukar yankin a matsayin wani bamgare na nahiyar Asiya.. Yanayin hanyoyin samun tattalin arziki a yammacin Asiya ya bambanta,amma ana samun saurin habakar tattalin arziki kwarai a yankin.Kasar Turkiyya ce kan gaba wajen karfin tattalin arziki a yammacin Asiya sai kasar Saudiyya ke biye da ita a matsayin ta biyu da kuma kasar Iran.Man fetur shine babban tattalin arziki a yankin, India Samar da rabin man fetur da duniya me da shi yake a yankin, sannan kuma kashi 40% na iskar gas ta duniya ma na a yankin..