Ansonia may refer to:
Places
- Ansonia, Ontario, Canada
- Ansonia, Connecticut, U.S.
- Ansonia High School (Connecticut)
- Ansonia station
- Ansonia, Ohio, U.S.
- Ansonia High School (Ohio)
- Ansonia, Pennsylvania, U.S.
Other uses
- Ansonia (frog), a genus of poisonous toads
- The Ansonia, a luxury residence on the Upper West Side of Manhattan
- Ansonia Clock Company