There are actually many meanings for this name (and Hiroko is fairly common in multiple generations).Kanji for "hiro": -wide/open/spacious (there are a couple kanji possibilities for this meaning) -generous -big seaOther possibilities for girls using the "Hiro" kanji at the beginning: Hiroe Hiroka Hiromi
Kanji for "hiro":
-wide/open/spacious (there are a couple kanji possibilities for this meaning)
-generous
-big sea
Other possibilities for girls using the "Hiro" kanji at the beginning:
Hiroe
Hiroka
Hiromi