John Michael Cocoris (; September 17, 1877 – 1944) was a Greek businessman. Born in Leonidio, he came to New York City in 1895 to work in the sponge trade. In 1896, he worked with John K. Cheyney in Tarpon Springs, Florida. In 1905, he introduced sponge diving to the area and recruited Greek sponge divers from the Dodecanese Islands. By the 1930s, the sponge industry of Tarpon Springs was very productive, generating millions of dollars a year. He died in 1944 in Duval County, Florida. See also Greek American References Leo Polopolu. A Brief History of Hellenism in Florida. External links History of the Tarpon Sponge Industry Sponge fishing in Key West and Tarpon Springs 1877 births 1944 deaths Greek businesspeople Greek emigrants to the United States Sponge diving People from Leonidio 19th-century Greek Americans