Tigris \t(i)-gris, tig-ris\ as a girl's name (also used as boy's name Tigris), is of Irish and Gaelic origin. From Latin "tiger". According to legend, Saint Patrick had a sister named Tigris. It is also a place name for a river that runs through Iraq.

Similar baby names are Tris, Caris, Karis, Kris, Cris, Damris, Doris, Dorris, Khris, Tirza, Tierza, Tiersa and Trisa.