- Titles: Tosa no kami
- Japanese: 石河政平 (Ishikô Masahira)
Ishikô Masahira was a Tokugawa shogunate official who served as Kanjô bugyô from 1847 or earlier until 1855. He served the shogunate on a number of different tasks and projects, including helping to oversee the construction of a new imperial palace following a fire in 1854. In 1855, he was reassigned to become a karô for the Hitotsubashi family.
- Ishin Shiryô Kôyô 維新史料綱要, vol 1 (1937), 58, 631.
- Ishin Shiryô Kôyô 維新史料綱要, vol 2 (1937), 100, 371.
- Ishin Shiryô Kôyô 維新史料綱要, vol 3 (1937), 7.