Sven Ingemar Ljungh, also spelled Liungh (5 June 1757, Björkö, Jönköping County – 12 September 1828, , Jönköping County) was a Swedish civil servant, naturalist and collector. During his schooling in Jönköping, he was a private student of the lexicographer from whom he learned the Latin language. At high school in Växjö, he received a good education in botany. He attended the gymnasium in Växjö and went to Uppsala in 1775, graduating in 1777 with a degree in theology. He then started to study medicine but fell ill to malaria. After recovery he joined the civil services. He took up a position in the Swedish civil service as a clerk in the judicial system and in 1778 became the Deputy Crown Bailiff in North and South Vedbo. He took an interest in natural history and was a visitor to the hom