Wilhelm Arnold
Wilhelm Arnold is the name of the following people:
- Wilhelm Arnold (physiologist) ( Johann Wilhelm Arnold ; 1801–1873), German physiologist
- Wilhelm Arnold (politician) (1848–1914), Swiss trade unionist, editor and politician
- Wilhelm Arnold-Rappard (1838–1918), Swiss pastor, see Predigerschule Basel
- Wilhelm Christoph Friedrich Arnold (1826–1883), German historian and politician
- Wilhelm Heidwolf Arnold (1897–1984), German painter and sculptor
- Wilhelm Karl Arnold (1911–1983), German psychologist