Count Ōgimachi Sanemasa was a Japanese courtier and pharmacist who served as Grand Chamberlain to the Emperor from 1919 to 1922.
- Occupation
- pharmacist, politician
- Position held
- member of the House of Peers, governor of Saitama Prefecture
- Citizenship
- Japan
- Born
- July 20, 1855
- Died
- June 26, 1923