Marbin-e Sofla Rural District () is in the Central District of Khomeynishahr County, Isfahan province, Iran. It is currently administered from the city of Khomeynishahr.
Marbin-e Sofla Rural District was created in the Central District after the 2006 National Census.
At the time of the 2006 census, the rural district's population was below the reporting threshold. The 2016 census measured the population of the rural district as zero. Its two villages were Emamzadeh Seyyed Mohammad (çàçàòçïàóÃÂïàÃÂàï) and Mazraeh-ye Khushab (àòñùàîÃÂôçè), both of which registered a population of zero.