1820 in archaeology

	… 1810; 1811; 1812; 1813; 1814; 1815; 1816; ; 1817; 1818; 1819; 1820; 1821; 1822; 1823; ; 1824; 1825; 1826; 1827; 1828; 1829; 1830 …;
	In science 1817 1818 1819 1820 1821 1822 1823
	Art; Archaeology; Architecture; Literature; Music; Philosophy; Science +...;

The year 1820 in archaeology involved some significant events.

Excavations[]

Narrative of the Operations and Recent Discoveries Within the Pyramids, Temples, Tombs, and Excavations in Egypt and Nubia by Giovanni Battista Belzoni.
First volume of the American Antiquarian Society's Transactions. Includes map and descriptions of Mound Builders remains in Ohio by Caleb Atwater.

April 8 - Venus de Milo (Aphrodite of Milos, c.150 BC-125 BC) is discovered on the island of Milos by a peasant named Yorgos Kentrotas.
Statue of Ramesses II is discovered at the Great Temple of Ptah of Mit-Rahina near Memphis, Egypt by Giovanni Battista Caviglia.

March 23 - Canon William Greenwell, English archaeologist notable for his Grimes Graves excavations (died 1918).^[1]

^ Sir Bernard Burke (1871). A genealogical and heraldic dictionary of the landed gentry of Great Britain & Ireland. Vol. Volume 1 (5th ed.). Harrison. p. 543. {{cite book}}: |volume= has extra text (help)