Gee Jon (c. 1895 – February 8, 1924) was a Chinese national who was the first person in the United States to be executed by lethal gas. A member of the Hip Sing Tong criminal society from San Francisco, California, Gee was sentenced to death for the murder of an elderly member from another gang in Nevada. An unsuccessful attempt to pump poison gas directly into his cell at Nevada State Prison led to the development of the gas chamber.