Dalby is a locality and short-lived former Latin Catholic diocese situated in Lund Municipality, Skåne County, Sweden with 6464 inhabitants in 2017. It is located about 10 km East-southeast of Lund, and about 20 km East-northeast of Malmö.
Dalby was a municipality up until 1974, when it became part of Lund municipality. Between 1941 and 1954, Dalby was also a municipal urban area.
The Dalby Söderskog national park is situated just northwest of Dalby.
Coordinates 55°40'15.049" N 13°21'32.494" E