Augustus Van Dievoet (/ˈdiːvʊt/, Latin: Augustus Divutius, French: Auguste Van Dievoet, 3 May 1803 – 31 October 1865) was a Belgian legal historian and Supreme Court advocate.

Van Dievoet and his colleagues Hubert Dolez and Augustus Orts were the most eminent lawyers of the time.

He was a student of Jean-Joseph Raepsaet, Jean-François-Michel Birnbaum, his teacher at the State University of Louvain,[4] and Friedrich Carl von Savigny.

Van Dievoet devoted his Latin thesis at the State University of Louvain in 1827 to ancient Belgian customs (De origine diversarum consuetudinum localium regni nostri).

In 1843, Adolphe Roussel commented on Van Dievoet's work in his Encyclopedia of Law: "In a remarkable thesis published in Leuven in 1827, Van Dievoet tried to find the origin of Belgian customs.