See also: shain English Proper noun Shain (plural Shains) A surname. Statistics According to the 2010 United States Census, Shain is the 12510th most common surname in the United States, belonging to 2478 individuals. Shain is most common among White (90.23%) individuals. Anagrams nashi, Ishan, Hsi-an, Shina, Anish, Sinha, hains, Sahin, Nashi, ishan, Naish, Hsian, Sahni, ShaniWikiwand - on Seamless Wikipedia browsing. On steroids.