In the movie "Kill Bill: Volume 1," the character O-Ren Ishii, played by Lucy Liu, wields a sword known as the "Shirasaya Sword" or the "Japanese Katana." While the specific swordsmith who made O-Ren Ishii's sword is not mentioned in the film, it can be assumed that it was crafted by a skilled swordsmith in Japan.

In the context of the movie's story, O-Ren Ishii is portrayed as a highly skilled assassin and the leader of the Tokyo Yakuza. As a character of Japanese and Chinese heritage, she possesses a deep respect for her heritage and traditions, including the use of a traditional Japanese sword.

It's important to note that within the fictional universe of "Kill Bill," the specifics of the sword's creation and the name of the swordsmith are not elaborated upon. The focus of the film is primarily on the characters and their actions, rather than the detailed background of each weapon.