The Gandititan holotype specimen, JXGM-F-V1, was discovered in sediments of the Zhoutian Formation in Datangkeng, Ganxian District, Ganzhou City, Jiangxi Province, China.

The generic name, "Gandititan", combines "Gan", in reference to Ganzhou City, the pinyin word "di", meaning "Earth" (also the first syllable of "dizhi", meaning "geology"), and the word "titan", a common suffix for giant sauropod names, referencing the pre-Olympian gods of Greek mythology.

While the authors intended "Gandi" to honor geological studies in Ganzhou, they also note the similarity to the Old Norse "gandr", referencing magical beings.

[1] Han et al. (2024) entered Gandititan into a phylogenetic analysis and recovered it as the sister taxon to Abdarainurus in a clade of basal titanosaurs including Andesaurus and an assortment of East Asian somphospondylans.

[3] The results of the phylogenetic analyses of Han et al. are shown in the cladogram below:[1] Andesaurus Baotianmansaurus Dongyangosaurus Huabeisaurus Abdarainurus Gandititan Daxiatitan Xianshanosaurus Ruyangosaurus Lithostrotia