Ludwig Arnold
Ludwig Arnold is the name of the following people:
- Ludwig Arnold (lawyer) (1798–1886), German lawyer and administrative lawyer, Lord Mayor of Kassel
- Ludwig Arnold (architect) (1826– ??), German architect and construction officer
- Ludwig Arnold (politician) (1905–1962), German politician (KPD, SED) and university professor
- Ludwig Arnold (mathematician) (* 1937), German mathematician and university professor
- Ludwig Arnold (painter) (* 1950), German painter