Stephen Kiyoshk (November 20, 1891 – January 3, 1941) was a Canadian Chippewa Indian murderer and possible serial killer. Originally convicted and sentenced to death for the killings of two men on Walpole Island in 1912, he was later acquitted in a second trial. In 1939, Kiyoshk was arrested for murder and sentenced to death yet again, but this time was successfully executed after failing to appeal his sentence.