Pfeiffer is an unincorporated community in Hardin County, in the U.S. state of Ohio.
[1] Pfeiffer had its start in 1883 when the railroad was extended to that point.
[2] John Pfeiffer, an early postmaster, gave the community his last name.
[2] A post office was established at Pfeiffer in 1883, and remained in operation until 1906.
This Hardin County, Ohio state location article is a stub.