Kuy-e Vali Aser (, also Romanized as Kūy-e Valī ʿAṣer) was a village in Kut-e Abdollah Rural District of the Central District of Karun County, Khuzestan province, Iran.
At the 2006 National Census, its population was 1,803 in 354 households, when it was in the Central District of Ahvaz County. The following census in 2011 counted 1,793 people in 453 households, The latest census in 2016 showed a population of 1,490 people in 413 households. by which time the rural district had been separated from the county in the establishment of Karun County.
After the census, the villages of Abu Dabis, Amireh, Jongiyeh, and Kuy-e Vali Aser were merged to form the new city of Rabi.