Lodewijk Caspar Valckenaer (Latinized as Ludovici Caspari Valckenaer; 7 June 1715, Leeuwarden – 15 March 1785, Leiden) was a Dutch classical scholar, at Leiden. He was a follower of Tiberius Hemsterhuis, and his successor in 1766 in the chair of Greek at Leiden.[citation needed] He was born in Leeuwarden.
The jurist and politician Johan Valckenaer (1759–1821) was his son.