Tynnin \t(yn)-nin\ as a boy's name is a variant of Tynan (Irish, Gaelic), and the meaning of Tynnin is "dark, dusty".

The baby name Tynnin sounds like Tannin, Tynnen and Tynin. Other similar baby names are Tannon, Tannis, Tannie, Tannen, Tannan, Tynon and Tynen.