Dayella may refer to:

• A fabric once manufactured by the makers of Viyella
• Day's round herring, a species of fish in the genus Dayella

• United States House of Representatives elections in Florida, 1888
• United States House of Representatives elections in Florida, 1890
• United States House of Representatives elections in Florida, 1892
• United States House of Representatives elections in Florida, 1894
• United States House of Representatives elections in Florida, 1896
• United States House of Representatives elections in Florida, 1898
• United States House of Representatives elections in Florida, 1900
• United States House of Representatives elections in Florida, 1902
• United States House of Representatives elections in Florida, 1904
• United States House of Representatives elections in Florida, 1906
• United States House of Representatives elections in Florida, 1908
• United States House of Representatives elections in Florida, 1910
• United States House of Representatives elections in Florida, 1912
• United States House of Representatives elections in Florida, 1914
• United States House of Representatives elections in Florida, 1916
• United States House of Representatives elections in Florida, 1918
• United States House of Representatives elections in Florida, 1920
• United States House of Representatives elections in Florida, 1928
• United States House of Representatives elections in Florida, 1932
• United States House of Representatives elections in Florida, 1936
• United States House of Representatives elections in Florida, 1938
• United States House of Representatives elections in Florida, 1940
• United States House of Representatives elections in Florida, 1942
• United States House of Representatives elections in Florida, 1944
• United States House of Representatives elections in Florida, 1946