Yi'an (), is a town and the county seat of Yi'an County, Heilongjiang, China. It used to be called TaiâÂÂan (æ³°å®Â), but was officially renamed in 1947 to YiâÂÂan (ä¾Âå®Â) to avoid any possibility of confusion within the city of Tai'an (æ³°å®Â) in Shandong Province (å±±æ±çÂÂ). It is on the former Tsitsihar-Koshen railway about west of Bei'an.