Bygdsiljum is a locality situated in SkellefteÃÂ¥ Municipality, Västerbotten County, Sweden with 333 inhabitants in 2015.
It is situated at the outlet of Västerbotten's biggest lake, Bygdeträsket, 20 km from the coast and 1 hour by car from the cities of SkellefteÃÂ¥ and UmeÃÂ¥.
The town's economy is mostly built on farming, light industry and lumber.