Tadd \t(a)-dd\ as a boy's name is a variant of Tad (English) and Thaddeus (Aramaic), and the meaning of Tadd is "heart".

The baby name Tadd sounds like Tadi, Tedd and Todd. Other similar baby names are Ladd, Aad, Aadi, Taso, Budd, Cade, Kade, Chadd, Dade, Dard, Ted, Teddy, Fadi, Fahd, Gad, Gadi, Hadi, Jade, Jedd, Jada, Judd, Kidd, Laddy, Lad, Laud, Maddy, Paddy, Rad, Redd, Rodd, Rudd, Saad, Said, Shadd, Tab, Tabb, Thad, Tadao, Tadeo, Taddeo, Tadhg, Taft, Tait, Tate, Taj, Tahj, Taji, Tal, Tahl, Tandy, Tan, Taos, Taro, Tau, Tavi, Tay, Taz, Tazz, Thady, Tadio, Tam, Tod and Wade.