Hayashi Ryūkō
Hayashi Ryūkō, 2nd rector of Yushima Seidō
Born	1681 Edo
Died	1758 Edo
Occupation	Neo-Confucian scholar, academic, administrator, writer
Subject	Japanese history, literature
Children	Hayashi Hōkoku, son
Relatives	Hayashi Hōkō, father Hayashi Gahō, grandfather Hayashi Razan, great-grandfather

Hayashi Ryūkō (林 榴岡, 1681 – December 11, 1758) was a Japanese Neo-Confucian scholar, teacher and administrator in the system of higher education maintained by the Tokugawa bakufu during the Edo period. He was a member of the Hayashi clan of Confucian scholars.

Hōkō was the fourth Hayashi clan Daigaku-no-kami of the Edo period.

Hōkō is known as the second official rector of the Shōhei-kō.^[1] This academy would come to be known as the Yushima Seidō) . This institution stood at the apex of the country-wide educational and training system which was created and maintained by the Tokugawa shogunate. Ryūkō's hereditary title was Daigaku-no-kami, which, in the context of the Tokugawa shogunate hierarchy, effectively translates as "head of the state university".^[2]

• Hayashi clan (Confucian scholars)

• De Bary, William Theodore, Carol Gluck, Arthur E. Tiedemann. (2005). Sources of Japanese Tradition, Vol. 2. New York: Columbia University Press. ISBN 9780231129848; OCLC 255020415
• Nussbaum, Louis Frédéric and Käthe Roth. (2005). Japan Encyclopedia. Cambridge: Harvard University Press. ISBN 978-0-674-01753-5; OCLC 48943301

• Tokyo's Shōhei-kō (Yushima Sedō) today
• Waseda: 林榴岡