Events in the year 1818 in Art.
- January 21 – Alexander Joseph Daiwaille, Dutch portrait painter (died 1888)
- January 26 – Amédée de Noé, French caricaturist and lithographer (died 1879)
- January 28 – Alfred Stevens, English sculptor (died 1875)
- April 3 – Jean-François Portaels, Flemish orientalist painter (died 1895)
- April 14 – Louisa Beresford, Marchioness of Waterford, French-born British Pre-Raphaelite watercolorist (died 1891)
- May 24 – John Henry Foley, Irish sculptor (died 1874)
- June 13 – Jean-Jules Allasseur, French sculptor (died 1903)
- June 21 – Sir Richard Wallace, 1st Baronet, born Richard Johnson, English francophile art collector and philanthropist (died 1890)
- December 7 – Georg Decker, Austro-Hungarian portrait painter (died 1894)
- probable – Alexander Hunter Murray, Scottish-born Canadian fur trader and artist (died 1874)
- January 5 – Marcello Bacciarelli, Italian painter (born 1731)
- February 28 – Anne Vallayer-Coster, French painter (born 1744)
- March 15 – Karl Postl, Austrian painter (born 1769)
- March 24 – Humphry Repton, English garden designer and artist (born 1752)
- August 16 – Carl Frederik von Breda, Swedish painter to the Swedish court (born 1759)
- October 4 – Josef Abel, Austrian historical painter and etcher (born 1768)
- November 1 – Marie-Gabrielle Capet, French painter (born 1761)
- November 5 – Heinrich Füger, German portrait and historical painter (born 1751)
- November 19 – Shiba Kōkan, Japanese painter and printmaker (born 1747)
- December 10 – Hubert Maurer, Austrian painter of portraits and religious themes (born 1738)
- date unknown
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