| Type: | catholic |
| ヤヌアリオ 早坂久之助 Januarius Kyunosuke Hayasaka | |
| Archbishop of Nagasaki | |
| Church: | Catholic Church |
| Diocese: | Nagasaki |
| Enthroned: | April 25, 1928 |
| Ended: | February 5, 1937 |
| Predecessor: | Jean-Claude Combaz |
| Successor: | Paul Aijirô Yamaguchi |
| Ordination: | June 10, 1917 |
| Consecration: | October 30, 1927 |
| Birth Date: | 14 August 1883 |
| Birth Place: | Miyagi Prefecture, Sendai |
Januarius Kyunosuke Hayasaka (1883-1959)[1] was a bishop of the Catholic Church of Showa from Meiji. His baptismal name was "Yanuario".
Hayasaka was the first Japanese-ethnicity bishop. He served as the archbishop of Nagasaki between 1927 and 1937.[2] His brother Kyube Hayasaka also served as bishop of the Diocese Daegu in Korea.