Asian Highway 84 (AH84) is a road in the Asian Highway Network running 1074 km (667 miles) from Doğubeyazıt to Mersin, Turkey. The route is concurrent with European route E90 and European route E99. The route is as follows:
Turkey Road D975: Doğubeyazıt - Muradiye Road D280: Muradiye - Erciş Road D290: Erciş - Adilcevaz Road D965: Adilcevaz - Baykan Road D360: Baykan - Diyarbakır - Siverek Road D885: Siverek - Şanlıurfa Otoyol 52: Şanlıurfa - Gaziantep - Toprakkale - Adana Branch Otoyol 53: Toprakkale - Iskenderun Otoyol 50: Adana Otoyol 51: Adana - Mersin