A new species of Spiranthinae from Mexico, Galeottiella hintoniorum, is described and illustrated. It is placed in the genus Galeottiella because of its lip and column structure and its herbaceous, cauline bracts and because Galeottiella is the oldest genus in the subtribe that can accommodate it. This new species is distinguished from other members of the genus by its epiphytic habit, small stature, and few-flowered inflorescences.