Globally, Tatsuguchi (Tatsuguchi ) is an extremely rare unknown gender first name. Much more frequently, Tatsuguchi is the last name as well as the forename.
タツグチ
Ken, Akiyoshi, Eduarda, Eduardo, Juliana, Gustavo, Ryosuke, Rosalie, Barbara, Colleen, Roland, Satomi, Mariko, Ichio, Elsie, Nancy, Terri, Patsy, Keith, Brian, Cathy, Greg, Reid, Paul, Carl, Jan, Emmeline, and Christopher
) is an extremely rare unknown gender first name. Much more frequently, Tatsuguchi is the last name as well as the forename.