Tapanila (Swedish: Mosabacka) is a neighbourhood in Malmi district, Helsinki. Tapanila has approximately 5474 inhabitants (2005). Tapanila has its own railway station.
It is known that there were few farm houses in Tapanila already in the 16th century. Back then tapanila was one of the biggest villages in Helsinki area. In 1862, railroad between Hämeenlinna and Tapanila was built. Tapanila got its characteristics in 1910–1935 in its most active building era. The area was annexed to Helsinki in 1946.