S41 may refer to :
- S41 (Berlin), a S-Bahn line
- S41: In case of fire and/or explosion do not breathe fumes, a safety phrase in chemistry
- S41 post code for Chesterfield, North East Derbyshire
- Short S.41, a Short Brothers aircraft
- USS S-41 (SS-146), a 1921 S-class submarine of the United States Navy
- Sum 41, a Canadian rock band
and also :
|This disambiguation page lists articles associated with the same title formed as a letter-number combination.
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