'''Frederick''' or '''Frederic Chapin''' may refer to:
* Frederick H. Chapin (1852–1900), American mountaineer and archaeologist * Frederic Chapin (1873–1947), American composer and screenwriter * Frederic L. Chapin (1929–1989), American diplomat * Frederick Emmons Chapin (1860–1923), American attorney and Supreme Court law clerk
{{hndis|Chapin, Frederick}}