Baron Lars Herman Gyllenhaal (1790–1858) was a Swedish civil servant, politician, friherre and a Lord of the Realm.
Gyllenhaal was "president," in the Göta Court of Appeals 1836–1855, Prime Minister for Justice 1843–1844.
Again chief justice in the Göta court of appeal December 28, 1844– April 3, 1855.
Speaker (lantmarskalk) in the Estate of the Nobility in the Riksdag 1850–1851.
HedLLA 43 (Honorary Member of the Agriculture Academy 1843) RoKKMO 51 (Knight and Commander of the Orders of His Majesty the King 1851).