Netsuke are miniature sculptures that were invented in 17th-century Japan to serve a practical function (the two Japanese characters ne+tsuke mean "root" and "to attach"). Traditional Japanese garments—robes called kosode and kimono—had no pockets; however, men who wore them needed a place to store their personal belongings, such as pipes, tobacco, money, seals, or medicines.

Their solution was to place such objects in containers (called sagemono) hung by cords from the robes' sashes (obi). The containers may have been pouches or small woven baskets, but the most popular were beautifully crafted boxes (inro), which were held shut by ojimes, which were sliding beads on cords. Whatever the form of the container, the fastener that secured the cord at the top of the sash was a carved, button-like toggle called a netsuke.

Netsuke, like the inro and ojime, evolved over time from being strictly utilitarian into objects of great artistic merit and an expression of extraordinary craftsmanship. Such objects have a long history reflecting the important aspects of Japanese folklore and life. Netsuke production was most popular during the Edo period in Japan, around 1615-1868. Today, the art lives on, and some modern works can command high prices in the UK, Europe, the USA, Japan and elsewhere. Inexpensive yet faithful reproductions are available in museums and souvenir shops.