Hugo Thielen (born 1946)[1] is a German freelance author and editor, who is focused on the history of Hanover, the capital of Lower Saxony, in a lexicon of the city, another one especially of its art and culture, and a third of biographies.

Thielen studied German language and literature, philosophy and education at the University of Bonn from 1966, completing with the Staatsexamen in 1971.

It is organised as a history of the city, beginning in 1303,[3] with a focus on the contributions of Jewish personalities, rather than individual biographies.

Around a hundred persons are described in some detail,[4] including the principal violinist of the court orchestra, Joseph Joachim.

[3] A second edition, completely revised by Thielen, appeared in 2013, in memory of the November pogroms 75 years earlier.