Deh Sir (Persian: دهسیر, also Romanized as Deh Sīr; also known as Deh-e Shīr and Deh Zīr) is a village in Qilab Rural District, Alvar-e Garmsiri District, Andimeshk County, Khuzestan Province, Iran. At the 2006 census, its population was 23, in 4 families.