Taliesin \t(a)-lie-sin\ as a boy's name (also used as girl's name Taliesin), is of Welsh origin, and the meaning of Taliesin is "shining forehead". Name of a sixth-century Welsh poet. The name is used by Frank Lloyd Wright for his two residences Taliesin (in Wisconsin) and Taliesin West (in Arizona).

Similar baby names are Tallin, Tallen, Talin, Talen and Tiesen.