Trinnette \tr(in)-nette, trinn(et)-te\ as a girl's name is a variant of Trina (Scandinavian). See for meaning of Trinnette.
The baby name Trinnette sounds like Trinette and Trinadette. Other similar baby names are Toinette, Tonette, Arnette, Ornette, Brunette, Dannette, Dennette, Reinette, Ronnette, Twanette and Trinitee.