Cyrus Hamlin may refer to:
- Cyrus Hamlin (missionary) (1811–1900), American Congregational missionary and co-founder of Robert College
- Cyrus Hamlin (general) (1839–1867), attorney, politician, and Civil War general
- Cyrus Hamlin (professor) (1936–2011), Yale professor
This disambiguation page lists articles about people with the same name.
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