Hisa Ota (?? ??, Ota Hisa, May 7, 1868–April 2, 1945) was a Japanese stage actress who spanned the Meiji and Taisho periods of Japan and was known by the name Hanako (??).
The kanji given for her name when born were ?? (Hisa), but she did not use those during her career.
Starting in 1900, she spent the majority of her career touring Europe and was the only Japanese person to model for Auguste Rodin, who gave her two masks he created, using Hanako as a model.
These masks are on display in the city of Gifu in Gifu Prefecture, Japan, where she spent her twilight years.
She was also the basis for Mori Ogai's short story Hanako.