Events from the year 1798 in art.

• English painter Robert Smirke begins to produce The Seven Ages of Man series for the Boydell Shakespeare Gallery.^[1]

• William Beechey
  • George III and the Prince of Wales Reviewing Troops
  • Thomas Hope
  • Portrait of George, Prince of Wales
• Louis-Léopold Boilly – Meeting of Artists in Isabey's Studio
• François Gérard – Cupid and Psyche
• Anne-Louis Girodet de Roussy-Trioson – Jean-Baptiste Belley
• Francisco Goya
  • Gaspar Melchor de Jovellanos (approximate date)
  • Witches' Sabbath
• Antoine-Jean Gros – Le pont d'Arcole
• Thomas Lawrence – Caroline, Princess of Wales
• John Opie – Portrait of Amelia Opie
• Thomas Whitcombe – The Battle of Camperdown, 11 October 1797

• January 8 – John Graham Lough, English sculptor known for his funerary monuments and a variety of portrait sculpture (died 1876)
• January 9 – Philippe Joseph Henri Lemaire, French sculptor (died 1880)
• February 17 – Josef Matěj Navrátil, Czech painter of paintings, murals and frescos (died 1865)
• March – David Hay, Scottish-born interior decorator (died 1866)
• March 12 – Elizabeth Goodridge, American painter specializing in miniatures (died 1882)
• April 26 – Eugène Delacroix, French Romantic painter (died 1863)
• June 22 – Ditlev Blunck, Danish painter (died 1854)
• July 16 – Abbondio Sangiorgio, Italian sculptor (died 1879)
• July 29 – Carl Blechen, German painter specializing in fantastic landscapes with demons and grotesque figures (died 1840)
• September 28 – Charles-Philippe Larivière, French academic painter and lithographer (died 1876)
• October 13 – Herman Wilhelm Bissen, Danish sculptor (died 1868)
• October 24 – Massimo d'Azeglio, Italian statesman, novelist and painter (died 1866)
• November 29 – Alexander Brullov, Russian painter, teacher and architect (died 1877)
• December 8 – Antoine Laurent Dantan, French academic sculptor (died 1878)
• date unknown
  • John Cart Burgess, English watercolour painter of flowers and landscapes (died 1863)
  • Jean Henri De Coene, Belgian painter of genre and historical subjects (died 1866)
  • Konstantin Danil, Serbian painter (died 1873)
  • William Egley, English miniature painter (died 1870)
  • James Eights, American scientist and watercolour painter (died 1882)
  • Thomas Foster, Irish portrait painter (died 1826)
  • James Duffield Harding, English landscape painter (died 1863)
  • Demeter Laccataris, Austro-Hungarian portrait painter of Greek origin (died 1864)
  • Henry O'Neill, Irish illustrator and archaeologist (died 1880)
  • Robert Seymour, English illustrator (suicide 1836)
  • Rafael Stupin, Russian painter (died 1860s)
  • Henry Bryan Ziegler, British landscape and portrait painter (died 1874)

• January 4 – Gavin Hamilton, Scottish neoclassical history painter (born 1723)
• January 25 – Christopher Unterberger, Italian painter of the early-Neoclassical period (born 1732)
• February 9 – Antoine de Favray, French-born portrait painter (born 1706)
• May 25 – Asmus Jacob Carstens, Danish-German (born 1754)
• May 27 – Franciszek Pinck, Polish sculptor and stucco artist (born 1733)
• August 28 – Charles Catton, English painter (born 1728)
• October 30 – Anton Hickel, Bohemian painter (born 1745)
• December 8 – Richard Newton, English caricaturist, of typhus (born 1777)
• date unknown
  • Giuseppe Angeli, Venetian painter of the late-baroque (born 1709)
  • Christopher Hewetson, Irish sculptor (born c. 1737)
  • Innocenzo Spinazzi, sculptor (born 1726)
  • Mikhail Shibanov, Russian painter (b. unknown)
  • Vincenzio Vangelisti, Italian engraver (born 1740)