Sidney Brown
Sidney or Sydney Brown may refer to:
- Sidney Brown (electrical engineer), British electrical engineer and inventor
- Sidney Brown (footballer), English soccer goalkeeper
- Sidney Brown (accordion maker), Cajun accordion maker
- Omen (record producer), Harlem music producer
- Sydney MacGillvary Brown, American World War I flying ace, author and professor of medieval history
- Sydney Brown (sport shooter), Canadian Olympic sport shooter
- Sydney Brown (American football), American football player