A traditional Japanese male given name (Tarō), commonly used especially for a first/eldest son and frequently used as a typical example name.
太郎は毎朝7時に起きて学校に行く。
Tarō gets up at 7 every morning and goes to school.
名簿には『山田太郎』と書かれていた。
The roster had 'Yamada Tarō' written on it.
例題では便宜上、登場人物を太郎と花子と呼ぶことが多い。
In examples, it's common to call the characters Tarō and Hanako for convenience.
昔話に出てくる太郎は勇敢で正直な人物として描かれることが多い。
Tarō in folk tales is often depicted as a brave and honest person.