Sikorsky S-34

S-34
Role Amphibian sesquiplane
National origin United States
Manufacturer Sikorsky Manufacturing Corporation
First flight 1926 or 1927
Number built 1
Developed into Sikorsky S-36

The Sikorsky S-34 was a 1920s American six-seat sesquiplane, designed and built by the Sikorsky Manufacturing Corporation. Only one was built, but the design led to the successful Sikorsky S-38.