The name "Kumoi no kari" does not appear in the text, and she was named so by posterity after the episode in the volume 'Shojo (girl)' (Genji Monogatari) in which she hummed 'Kumoi no kari mo wagagotoya (if a goose flying in the fog feels as I do now)' expressing her sentiment after having been forced to part with Yugiri.
雲居の雁という名前は本文中には現れず、夕霧と引き離された心情を「雲居の雁もわがごとや（晴れない霧の中を飛ぶ雁は今の私と同じような気持ちなのだろうか）」と口ずさんだ「少女(源氏物語)」巻のエピソードに因み、後世の人が名づけたもの。