Eskilstuna United DFF is a football club from Eskilstuna, in Södermanland County, Sweden. The club was established in 2002 and was promoted into the Women's Premier Division (Damallsvenskan) for the first time in 2014.

Eskilstuna is a city and the seat of Eskilstuna Municipality, Södermanland County, Sweden. The city of Eskilstuna had 69,948 inhabitants in 2020, with a total population of 107,806 inhabitants in Eskilstuna municipality 2023. Eskilstuna has a large Sweden Finn population. The town is located on the River Eskilstunaån, which connects Lake Hjälmaren and Lake Mälaren.