Events from the year 1603 in art.

• (unknown)

• 
  Caravaggio, The Entombment of Christ
• 
  Caravaggio, Sacrifice of Isaac

• Caravaggio
  • The Entombment of Christ (1602-1603)
  • Sacrifice of Isaac (Uffizi)
• Peter Paul Rubens - Portrait of a Young Woman
• Tawaraya Sōtatsu (with calligrapher Honami Kōetsu) - Poem scroll with deer
• Andrea Vicentino - Battle of Lepanto (Doge's Palace, Venice)

• March 2 - Pietro Novelli, Italian painter, architect and stage set designer (died 1647)
• June 3 - Pietro Paolini, Italian painter of still lifes and cabinet pictures (died 1681)
• date unknown
  • Pieter Jansz van Asch, Dutch painter (died 1678)
  • Cornelis Bloemaert, Dutch painter and engraver (died 1692)
  • Jan Gerritsz van Bronckhorst Dutch painter and engraver of the Baroque period (died 1661)
  • Paolo Antonio Barbieri, Italian painter who was the brother of Guercino (died 1649)
  • Filippo Brizzi, Italian painter (died 1675)
  • Giovanni Battista Carlone, Italian painter active mainly in Genoa (died 1684)
  • Pietro della Vecchia, Italian painter of grotesque paintings and portraitures (died 1678)
  • Hans Ulrich Franck, German historical painter and etcher (died 1675)
  • Mario Nuzzi, Italian painter specializing in still life painting of flower arrangements (died 1673)
  • Paulus Pontius, Flemish engraver (died 1658)
  • Giovanni Quagliata, Italian painter of frescos and large canvases depicting historical and religious subjects (died 1673)
• probable
  • Adriaen Hanneman, Dutch painter best known for his portraits of the exiled British royal court (died 1671)
  • Aert van der Neer, Dutch painter (died 1677)
  • Abraham Willaerts, Dutch marine painter (died 1669)

• July 23 - Santi di Tito, Italian painter of Late-Mannerist or proto-Baroque style (born 1536)
• August/September - Hendrik van Steenwijk I, Dutch painter, earliest-known painter of architectural interiors (born 1550)
• December 4 - Marten de Vos, Antwerp painter and draughtsman (born 1532)
• date unknown
  • Étienne Dumonstier, French Renaissance portrait painter (born 1540)
  • Pieter Pietersz the Elder, Dutch painter (born 1540)
  • Joos van Winghe, Flemish painter (born 1544)