Beyağaç is a municipality and district of Denizli Province, Turkey. Its area is 333 km2, and its population is 6,197 (2022). Beyağaç district area neighbors those of three other districts of Denizli Province from the north-west to the south-east, namely Kale, Tavas and Acıpayam and the central district and Köyceğiz district of Muğla Province to its west. It is closer to the neighboring provincial seat of Muğla than its own. Among the districts of Denizli Province as a whole, Beyağaç is the one which is the closest to the Turkish Riviera coastline, along its Marmaris, Köyceğiz and Fethiye axis.