Ernst Anton Wülfing (27 November 1860, Elberfeld – 17 December 1930, Bad Wörishofen) was a German mineralogist and petrographer, known for his research on the optical properties of minerals and meteorites.
He studied chemistry at Geneva and at Heidelberg as a student of Robert Bunsen, then focused his attention to mineralogy and geology, of which, he studied at Greifswald and Vienna (1887–88). Afterwards he served as an assistant to Harry Rosenbusch at the University of Heidelberg.
He taught classes in mineralogy and petrography at the University of Tübingen (1891–1899), the agricultural academy at Hohenheim in Württemberg (1899–1904), the "Technische Hochschule" in Danzig (1904–07), the University of Kiel (1907–08) and at the University of Heidelberg (1908–1926).
The mineral wülfingite is named in his honor.
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