Other
- Allan, a Clan Grant split (or sept)
- Ahlawat or Allan, an ethnic clan in India
- Allan (film), a 1966 film directed by Donald Shebib
- "Allan", a 1988 song recorded by the French artist Mylène Farmer
- Allan Candy Company, a Canadian confectionary company
- Allan of Rotterdam, a former train and tram manufacturer in the Netherlands
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