Hinako Ninomiya (二ノ宮 ひな子 Ninomiya Hinako?) is Ranma Saotome's scatterbrained English teacher. The first part of her name, "Hina", means "young bird", while "ko" is a common feminine name ending, usually meaning "child", from the word kodomo. "Ninomiya" is broken down into "two princesses," which is a reference to her adult and child forms.