Charles Yale Beach (March 4, 1847 – October 16, 1917) was an American real estate investor, inventor and businessman from New York. He was among the largest real estate owners of Bridgeport, Connecticut, behind Senator Nathaniel Wheeler and Clinton Barnum Seeley, grandson of P. T. Barnum.
He was also a correspondent of Mark Twain, who was with the Beach family among the Quaker City excursion of 1867, covered in Twain's Innocents Abroad. Beach's New York historical landmark, the Commercial Advertiser Building, burned down in 1891.