Eufrosine Doukaina Kamaterina pe Camatera (pe Ευφροσύνη Δούκαινα Καματερίνα ή Καματηρά, Euphrosynē Doukaina Kamaterina é Kamatēra) (war-dro 1155-1211), impalaerez Bizantion, pried dan impalaer Aleixo III Ângelo.