Samuel Isaac Joseph Schereschewsky (pronounced skĕr-ĕs-kūs'kĭ Chinese: 施約瑟; 6 May 1831 – 15 October 1906), also known as Joseph Schereschewsky, was the Anglican Bishop of Shanghai, China, from 1877 to 1884. He founded St. John's University, Shanghai, in 1879.