Thirsa \th(ir)-sa\ as a girl's name is a variant of Tirzah (Hebrew), and the meaning of Thirsa is "delight, pleasantness, cypress tree".

The baby name Thirsa sounds like Thursa, Thirza and Thersa. Other similar baby names are Tersa, Thaisa, Theresa, Therma, Thora, Thyra, Tirza, Tiersa, Thurza, Thirzah, Trissa and Trisa.