Tamdybulaq, sometimes also written as Tamdybulak, is an urban-type settlement and seat of Tamdy District in Navoiy Region in Uzbekistan. Its population is 5,000 (2022 est.).
Tamdybulak lies in the Kyzyl Kum desert, a flat, arid plain with scattered sand dunes.
Tamdybulak is served by the Tamdy Bulak Airport.
Roads from the town lead southwest to Zarafshan, southeast to Ayakkuduk, and north to Sukuti and Keriz.
Tamdybulak has a desert climate (Köppen climate classification BWk), with cold winters and very hot summers. Rain is light and sporadic, and usually occurs from November to May.