?c Eo is an archaeological site in Tho廕【 S??n District in southern An Giang Province, Vietnam, in the Mekong River Delta region of Vietnam. It is also one of the modern day communes of Vietnam. ?c Eo may have been a busy port of the kingdom of Funan between the 1st and 7th centuries AD. Scholars use the term '?c Eo Culture' to refer to the ancient material culture of the Mekong Delta region that is typified by the artifacts recovered at ?c Eo through archeological investigation.

Excavation at ?c Eo began on February 10, 1942 after French archaeologists had discovered the site through the use of aerial photography. The first excavations were led by Louis Mallaret. The site covers 450 ha.

?c Eo is situated within a network of ancient canals that crisscross the low flatland of the Mekong Delta. One of the canals connects ?c Eo to the town's seaport while another goes 42 miles north-northeast to Angkor Borei. ?c Eo is longitudinally bisected by a canal, and there are four transverse canals along which pile-supported houses were perhaps ranged.

The remains found at ?c Eo include pottery, tools, jewelry, casts for making jewelry, coins (including coins from the Roman Empire), and religious statues. Many of the remains have been collected and are on exhibition in the Museum of Vietnamese History in Ho Chi Minh City.