Kartam (Georgian: ქართამი) was a Pharnavazid eristavi of Colchis and prince of the Kingdom of Iberia in the 1st century BC.
[1] Kartam was a descendant of Kuji of Colchis from his marriage on a sister of Pharnavaz I of Iberia.
[2] Kartam was adopted by King Pharnavaz II.
He married Pharnavaz's daughter and had two sons: Pharasmanes I and Mithridates.
Kartam died in 33 BC.