Anna, known in Bulgarian historiography as Kumankata (Bulgarian: Куманката, "the Cuman [woman]") (fl. 1207), was the Empress consort of Bulgaria by marriage to Kaloyan of Bulgaria and Boril of Bulgaria.
The name Anna was the name she took when she converted to Christianity. The original name of the Cuman noblewoman who subsequently married two Tsars Emperors of Bulgaria, Kaloyan of Bulgaria and Boril of Bulgaria, is unknown. There are only two sources mentioning her, both foreign. The Byzantine historian George Akropolites claimed that after the death of Kaloyan, his sister's son Boril 'married his Scythian aunt'. From this evidence, it is not sure whether the Tsaritsa was really a Cuman, or she belonged to another tribe that could be described as Scythian. As Veselin Ignatov points out, given the strong relations between the Asen dynasty and the Cumans, her Cuman lineage is the most probable possibility, but not the only one.