Pholcus is a genus of spiders of long-bodied cellar spider and allies in the family Pholcidae, with 375 described species as of January 2023.
It includes the cellar spider P. phalangioides, often called the "daddy longlegs". This may cause confusion because the name "daddy longlegs" is also applied to two other unrelated arthropods: the harvestman and the crane fly.