Ernst Meyer may refer to:
Ernst Heinrich Friedrich Meyer (1791–1858), German botanist Ernst Meyer (painter) (1797–1861), Danish painter Ernst Meyer (Swedish politician) (1847–1925), Swedish politician Ernst Meyer (German politician) (1887–1930), German Communist Party leader Ernst Meyer (historian) (1898–1975), German ancient historian Ernst Hermann Meyer (1905–1988), German composer and musicologist
See also Ernst Walter Mayr (1904–2005), German evolutionary biologist :de:Ernst Meyer, a longer list in German Wiki