Liljendal is a former municipality of Finland. It is located in the province of Southern Finland and was part of the Eastern Uusimaa region. The municipality had a population of 1,472 (31 December 2009) and covered an area of 119.64 square kilometres (46.19 sq mi) of which 5.97 km2 (2.31 sq mi) is water. The population density was 12.95 inhabitants per square kilometre (33.5/sq mi). The municipality was bilingual, with majority (74.9%) being Swedish and minority (23.8%) Finnish speakers. The municipality has previously also been known as Liljentaali in Finnish documents.