Robert McElroy

Robert McElroy may refer to:
 * Robert McElroy (Ontario politician) (c. 1810–1881), mayor of Hamilton, Ontario, Canada
 * Robert Herbert McElroy (1860–1920), Ontario merchant and political figure
 * Robert McNutt McElroy (1872–1959), American historian
 * Robert R. McElroy (1928–2012), American photographer
 * Robert W. McElroy (born 1954), American Catholic cardinal