Tall Kohneh () is a neighborhood in the city of Tashan in Tashan District, Behbahan County, Khuzestan province, Iran.
At the time of the 2006 National Census, Tall Kohneh's population was 279 in 62 households, when it was a village in Tashan-e Sharqi Rural District. The following census in 2011 counted 284 people in 77 households.
In 2013, the village of Mashhad merged with the villages of Ablesh, Chahardahi-ye Asgar, Chahardahi-ye Sohrab, Deh-e Ebrahim, Kalgeh Zar, Masiri, Sarallah, Shahrak-e Taleqani, and Tall Kohneh to form the city of Tashan.