Jacques Sternfeld was an Austrian portrait and genre painter.

Sternfeld was the son of the merchant Leopold Sternfeld and his wife Rosa (née Fuchs). After attending the Volksbürgerschule, he began an apprenticeship as a dressmaker at the age of 14. From 1892 to 1900 he studied at the Academy of Fine Arts Vienna under Siegmund L'Allemand and Kasimir Pochwalski. Interrupting his studies of painting, he joined the army as a one-year volunteer in 1896 and was transferred to the reserves in 1899. In 1904, he married Katharine Anna, a daughter of Andreas Lorenz Barberies. In 1905, he became a lieutenant in the reserves and was a captain in the reserves from 1914 to 1919.

Since 1900 Sternfeld worked as a freelance artist and undertook numerous study trips, including to Bosnia, Dalmatia, Hungary and Turkey. From 1900 he was active in Vienna as a portrait painter of well-known personalities and genre painter. He also took part in the exhibitions of the Genossenschaft der bildenden Künstler Wiens (Künstlerhaus), but his admission to the Genossenschaft was rejected in 1910. In 1913 he was elected chairman (president) of the Austrian Artists' Association. In 1914 he became a founding member of the Austrian Werkbund and a member of the Wiener Heimatkunst. In 1919 Sternfeld joined the newly founded art community in the Glaspalast and became a member of its committee.