John W. Abadie (November 4, 1854 – May 17, 1905) was an American professional baseball first baseman who played in Major League Baseball during the 1875 season. He was born in Philadelphia, Pennsylvania. John Abadie played 12 games with the Philadelphia Centennials and Brooklyn Atlantics during the 1875 season, compiling a batting average of .224 (11 for 49) with four runs scored and five RBI. Additionally, John Abadie became the only player to have a unique triple slash line (.224/.224/.224) in a Major League career. Abadie died in 1905 in Pemberton, New Jersey, at the age of 50.