Otsego is an unincorporated community in Muskingum County, in the U.S. state of Ohio.[1] Otsego was laid out in 1838, and named after Otsego, New York.[2] A post office was established at Otsego in 1840, and discontinued in 1963.This Muskingum County, Ohio state location article is a stub.You can help Wikipedia by expanding it.