John Shepard III (1886 – 1950) was an American radio executive and merchant. Among his many achievements, he was among the original board members of the National Association of Broadcasters and founded both the Yankee Network and the Yankee News Service.
John Shepard was born into a family of merchants. His grandfather, John Shepard Senior and partner Henry Norwell founded Shepard-Norwell, a Boston retail store. His father, John Shepard Junior continued in the family business. the Shepard-Norwell. Initially the store sold dry goods but by the late 1870s, its merchandise included fashionable clothing and hats, imported fabrics, draperies, parasols and other clothing. By the time John Shepard's son, John Jr, assumed operations, it had become one of Boston's most popular department stores. The large store, at 30 Winter Street, occupied most of the city block created by Winter Street and Winter Place. In 1915, Shepard-Norwell opened its own restaurant, the Colonial.
John III attended Brookline High School in Brookline, Massachusetts and a naval preparatory school in Annapolis, Maryland. In 1912, he married Mabel E. Fletcher of Providence, with whom he had three daughters.