Tamasin \t(a)-ma-sin\ as a girl's name is a variant of Tamsin (English). See for meaning of Tamasin.

The baby name Tamasin sounds like Tamasine, Tamzin, Tamsyn, Tamsine, Tamsen, Tomasine, Tomasina and Thomasin. Other similar baby names are Jamesina, Jamison, Taliesin, Tamryn, Tamlyn, Tamilyn, Tamzen, Tamsinne, Terasina, Thomasina and Thomasine.