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Oghul Qaimish (, , , died 1251) was the principal wife of Güyük Khan and ruled as regent over the Mongol Empire after the death of her husband in 1248. She was a descendant of the Mergid tribe. However, H. H. Howorth believed that she was an Oirat, mistaking her for Oghul Tutmish, wife of Möngke.