Shinshindō (駸々堂; c. 1881 - 2000) was a bookstore and publisher founded by Oobuchi Wataru 大淵渉 (1855 ‐ 1907) in Kyoto. The company later moved to Osaka and went through several name changes over the course of the twentieth century, developing a niche market for study guides and test preparation books in the process, but ultimately going bankrupt in 2000.