Ziang Sung Wan v. United States, 266 U.S. 1 (1924), was a United States Supreme Court case concerning the admissibility of a confession in a 1919 triple homicide case. Scott Seligman, writing for the Smithsonian, referred to the case as having "laid the groundwork for Americans' right to remain silent".
One of the victims of the triple murder was translator Theodore Wong.