Tom Buk-Swienty (born 19 July 1966 in Eutin) is a Danish historian, journalist and author, known for his work on the Second Schleswig War.

During 1994–2005, he served as the American correspondent for the Danish periodical Weekendavisen and also as a lecturer at the University of Southern Denmark in Odense until 2010.

He is now an independent author and since 2014 has been an adjunct professor in history at University of Southern Denmark.

His writing career began during his US stay where he wrote books based on his knowledge of America.

After his return to Denmark, he began studying the war of 1864, and he then wrote the first volume of his two-volume work on that conflict.