Tsuko

Tsuko may refer to:
 * 6599 Tsuko a main-belt asteroid named after Tsuko Nakamura (b. 1943)
 * Tsuko Nakamura (born 1943), Japanese astronomer and discoverer of minor planets
 * Tsūkō ichiran, a compilation of Japanese documents about foreign relations
 * Tsuko Station a Japanese train station located in Ogōri, Fukuoka