Turkmenistan–Uzbekistan border

The Turkmenistan–Uzbekistan border is the border between the countries of Turkmenistan and the Republic of Uzbekistan. At 1,793 km (1,114 mi), it is Turkmenistan's longest border and Uzbekistan's second longest (behind Uzbekistan's border with Kazakhstan). The border runs from the tripoint with Kazakhstan to the tripoint with Afghanistan.

The Turkmenistan–Uzbekistan border was first established in 1925, when both countries were part of the Soviet Union as the Turkmen SSR and the Uzbek SSR respectively. With the dissolution of the Soviet Union in 1991, Turkmenistan and Uzbekistan became independent countries, making the Turkmenistan–Uzbekistan border an international border. A joint treaty was signed between Turkmenistan and Uzbekistan in 2000, recognizing the post-independence border as the official border between the two countries, ending a decade of disputes and establishing the border's current shape. A border fence was constructed afterward.