Sæby may refer to several towns and villages in Denmark:
Sæby, a town and seaport in Frederikshavn municipality, Jutland. Sæby, Kalundborg municipality, a small village on the brink of lake Tissø in Kalundborg municipality, Zealand. Sæby, Lejre municipality, a small village near Kirke Hyllinge in Lejre municipality on Zealand. Sæby Kirke, a small countryside church near Glyngøre in Skive municipality, Jutland
Elsewhere:
Sønder Sæby is the name of the former fishing village where Landskrona is today
In Sweden, Säby refers to several places