
Bella and Hanna. The Eldest Daughters of M. L. Nathanson is a painting by the Danish painter, C. W. Eckersberg. It was painted in 1820.

Bombardment of Algiers is one of a number of oil-on-canvas paintings by British artist Thomas Luny depicting the heavy bombardment of the harbour of Algiers by a fleet of Anglo-Dutch ships under the command of Admiral Lord Exmouth, and the ensuing destruction. The exact date of the paintings creation is not known, but it is signed and dated to 1820 by Luny, four years after the events depicted.

The Entombment of Christ is an 1820 painting by the French artist Eugène Delacroix, constituting a minor reworking of The Entombment of Christ, a c.1520 work by Titian. He left it to his pupil Paul Chenavard, who in 1881 left it to the musée des Beaux-Arts de Lyon, where it still hangs.

Francis I and His Family is an 1820 oil on canvas painting by Giuseppe Cammarano, now in the National Museum of Capodimonte in Naples.

The Ghost of a Flea is a miniature painting by the English poet, painter and printmaker William Blake, held in the Tate Gallery, London. Measuring only 8.42 by 6.3 inches, it is executed in a tempera mixture with gold, on a mahogany-type tropical hardwood panel. It was completed between 1819 and 1820, as part of a series depicting "Visionary Heads" commissioned by the watercolourist and astrologist John Varley (1778–1842). Fantastic, spiritual art was popular in Britain from around 1770 to 1830, and during this time Blake often worked on unearthly, supernatural panels to amuse and amaze his friends.

Montaigne Visiting Torquato Tasso in Prison is an 1820 painting by François Marius Granet, now in the Musée Fabre in Montpellier. It shows Montaigne visiting Torquato Tasso.

Pietro Rossi is an 1818-1820 oil on canvas painting by the Italian artist Francesco Hayez, now in the San Fiorano collection in Milan. A copy is in the Pinacoteca di Brera, also in Milan. Both show Pietro Rossi, accepting an invitation from Francesco Dandolo via a messenger to take command of the Venetian resistance to the expansionist Scaligeri. The work links a heroic past event to contemporary events and a Romantic sensitivity, as in historical novels of the same period such as Alessandro Manzoni's 1840 The Betrothed.

Stratford Mill is an 1820 oil on canvas painting by the British landscape artist John Constable. It is the second painting in the series of ‘six-footers’ depicting working scenes on the River Stour, a series that includes The Hay Wain. The painting is now in the collection of the National Gallery in London.

The Surrender of Lord Cornwallis is an oil painting by John Trumbull. The painting was completed in 1820, and hangs in the rotunda of the United States Capitol in Washington, D. C.