Events from the year 1668 in art.

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• The Sheldonian Theatre in Oxford is completed, to a design by Sir Christopher Wren with ceiling paintings by Robert Streater.

• Viviano Codazzi and Filippo Lauri – The Bernini Arsenal at Civitavecchia^[1]
• Jan de Bray – The artist and his wife as Ulysses and Penelope
• Jean Baptiste Dieussart – lead statues Amor Dei and Amor Patriae, Riddarhuset, Stockholm
• Gerard de Lairesse – Allegory of the Five Senses
• Charles Le Brun
  • La Colère
  • Equestrian portrait of Louis XIV
• Adriaen van de Velde – Frozen Canal with Skaters and Hockey Players
• Jan Vermeer
  • The Astronomer
  • The Art of Painting (probably completed at or by this date)

• date unknown
  • Giovanni Battista Cassana, Italian painter of fruit, flowers, and still-life (died 1738)
  • Étienne-Jehandier Desrochers, French engraver (died 1741)
  • Yun Du-seo, Korean painter and scholar of the Joseon period (died 1715)
  • Jan Griffier II, English painter (died 1750)
  • Clemente Ruta, Italian painter specializing in landscapes with pen and watercolor (died 1767)
  • Francesco Maria Schiaffino, Italian sculptor (died 1763)
  • Alessandro Specchi, Italian architect and engraver (died 1729)
  • Carlo Antonio Tavella, Italian painter of landscapes (died 1738)
  • Giuseppe Tonelli, Italian painter of frescoes and quadratura (died 1732)
  • Theodor van Pee, Dutch painter (died 1746)
  • Domenico Maria Viani, Italian painter of churches, born in Bologna (died 1711)
  • Peter Schubart von Ehrenberg, painter and stage designer active in Vienna (d. unknown)
• probable – Giacomo Antonio Arland, Italian painter of the Baroque period (died 1743)

• February 8 – Alessandro Tiarini, Italian Baroque painter of frescoes, façade decorations, and altarpieces (born 1557)
• April 21 – Jan Boeckhorst, German-born Flemish Baroque painter (born 1604)
• May 19 – Philips Wouwerman, Dutch painter (born 1619)
• August 23 – Artus Quellinus the Elder, Flemish sculptor (born 1609)
• September – Jan Miense Molenaer, Dutch genre painter (born 1610)
• September 4 - Titus van Rijn, son and model of Rembrandt (born 1641)
• date unknown
  • Benito Manuel Agüero, Spanish painter of the Baroque period (born 1624)
  • Giulio Benso, Genovese painter of the early Baroque (born 1592)
  • Giovanni Battista Bolognini, Italian painter and engraver of the Baroque (born 1611)
  • Philips de Marlier, Flemish Baroque painter and copyist (born 1600)
  • Jan Goedart, Dutch painter famous for his illustrations of insects (born 1620)
  • Antonio Travi, deaf Italian landscape painter (born 1613)