Hitoha Miyamizu
Kanji 宮水 一葉
Rōmaji Miyamizu Hitoha
Hair color Gray
Eye color Gray
Gender Female
Race Human
Blood type O
Age 82 (When the comet struck)
Birthday March 4th, 1931 (Pisces)
Personal Status
Status Deceased (in first timeline)
Alive (in final timeline and manga)
Relatives Futaba Miyamizu (Daughter)
Mitsuha Miyamizu (Granddaughter)
Yotsuha Miyamizu (Granddaughter)
Toshiki Miyamizu (Son-in-law)
Affiliations Miyamizu Family
Voice Actor
Japanese Etsuko Ichihara
English Glynis Ellis
First Appearance
Film Kimi no Na Wa.

Hitoha Miyamizu (宮水 一葉 Miyamizu Hitoha?) is the head of the family shrine and the grandmother of Mitsuha and Yotsuha. After the death of her daughter, Futaba (Mitsuha's and Yotsuha's mother), she decided to raise Mitsuha and Yotsuha herself.

She appears to be aware of Mitsuha's body switching with Taki, pointing out that Mitsuha is "dreaming" when it's actually Taki in Mitsuha's body. She also claims to have experienced something similar in her youth, but has long forgotten the contents of her dreaming experiences, and implies that Mitsuha's mother may have experienced something similar as well. She is last seen with Yotsuha, Mitsuha, and their father in his Mayoral office.

While she survived the Tiamat disaster of 2013, it is unknown what has become of her by the year 2021. It is shown that she is still alive during 2021 on the manga.