Devnya Valley (Devnenska Dolina \'dev-nen-ska do-li-'na\) is 2.5-km long and 700 m wide valley and is situated between the north slopes of Great Needle Peak (Falsa Aguja Peak) and Helmet Peak in Levski Ridge, Tangra Mountains on Livingston Island in the South Shetland Islands. The valley holds a side tributary of Huron Glacier.