Gresley or LeGresley is a surname and may refer to:
Edgar LeGresley (1940–2007), Canadian politician Francis Le Gresley, Jersey politician Frank Gresley (1855–1936), British painter Sir George Gresley, 1st Baronet (c.1580–1651), English landowner and politician Harold Gresley (1892–1967), son of Frank, also a British painter Henri Gresley (1819–1890), French Minister of War James Stephen Gresley (1829–1908), father of Frank, also a British painter Karen LeGresley (born 1951), Canadian freestyle swimmer Nigel Gresley (1876–1941), English locomotive engineer Sir Nigel Gresley, 6th Baronet (c.1727–1787), English land-owner, mine-owner and builder Roger Gresley, (1799–1837), English writer and Tory politician Sir Thomas Gresley, 5th Baronet (1722–1753), Member of Parliament for Lichfield 1753 Sir Thomas Gresley, 10th Baronet (1832–1868), Member of Parliament for South Derbyshire William Gresley (divine) (1801–1876), English cleric
See also Castle Gresley, Derbyshire Church Gresley, village and former civil parish in the South Derbyshire district of Derbyshire, England LNER Class A4 4498 Sir Nigel Gresley, steam locomotive built 1937