Deh Kheyr-e Pain (, also Romanized as Deh Kheyr-e Pā’īn and Deh Khair Pain; also known as Deh Kheyr-e Soflá and Kheir Sofla) is a village in Qaryah ol Kheyr Rural District of Jannat District, Darab County, Fars province, Iran.
At the 2006 National Census, its population was 1,987 in 459 households, when it was in the Central District. The following census in 2011 counted 2,099 people in 587 households, by which time the rural district had been separated from the district in the establishment of Jannat District. The latest census in 2016 showed a population of 2,202 people in 706 households. It was the largest village in its rural district.