Ludwig Schmitz-Kallenberg (10 June 1867, in Rheydt – 22 April 1937, in Münster) was a German archivist and historian of Westphalia.
In 1893 he took a study trip to Rome via a scholarship from the Görres Society, and from 1896 worked as an archivist for the Historical Commission for Westphalia.
In 1899 he became a lecturer at Münster, where in 1918 he was named an honorary full professor.
From 1921 to 1932 he served as director of the state archives in Münster.
[1] He was an editor of journals Westfalen (1909–25) and Westfälische Zeitschrift (1923–25), and from 1915 to 1926 edited the Geschichtliche Darstellungen und Quellen ("Historical Representations and Sources").