Is Tao a Korean last name?

Could you please clarify for me, is Tao considered a common Korean surname? I've encountered it in a few contexts but I'm not entirely sure about its origin. Could it be that Tao is a surname specific to a certain region or cultural background within Korea? Or perhaps it's more widely distributed? I'm quite interested in understanding the ethnic and cultural significance behind this surname, if any. Your insights would be greatly appreciated.