Lauritz Nicolai Hvidt (27 October 1777 – 16 March 1856) was a Danish merchant and politician.

He was also part of the management of the marine insurance company De private Assurandeurer and director of the Bank of Denmark.

Hvidt intended to study law but was instead employed as an exchange commissioner (børskommissær) in 1809.

He was elected as a member of De Oplyste Mænds Forsamling in 1832 and was vice president of the Provincial Assemblies (Stænderforsamlingerne) in 1835–1836, 1840 and 1842.

He was appointed as Minister Without Portfolio in the so-called March Cabinet and was involved in the drafting of the government's proposal for a democratic constitution.

[1] Hvidt married Wilhelmine Therese Lorck (28 May 1782 – 17 June 1852) on 20 August 1800 in Memel.

His eldest son, Eduard Julius Hvidt (8 August 1806 – 7 February 1882) continued his father's business.

Another daughter, Charlotte Henriette Hvidt (20 September 1813 – 8 June 1847), married engineer and politician Edvard Diderik Ehlers.