Sundby may refer to:
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Places
Denmark
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Sundby, Copenhagen, a district in Copenhagen
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Sundby, Lolland, a satellite town of Nykøbing Falster on Lolland
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Nørresundby
Nørresundby () is a city in Aalborg Municipality, north of Limfjorden, in Vendsyssel, in Denmark. The urban area has a population of 24,436 (1 January 2025). It is located just north of Aalborg, which lies south of Limfjorden. Statistically it ...
, a town on North Jutlandic Island
Sweden
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Sundby, Sweden, a locality on Ekerö in Stockholm County
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Sundbyberg Municipality
Sundbyberg Municipality ( or ''Sundbybergs stad'') is a municipality in Stockholm County in east central Sweden, just north of the capital Stockholm. Sundbyberg is wholly within the Stockholm urban area and has a 100% urban population.
Sundbybe ...
, Sweden
People with the surname
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Martin Johnsrud Sundby, Norwegian cross-country skier
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Ragnhild Sundby (1922–2006), Norwegian zoologist
{{disambiguation, geo, surname