Bern Township is one of the fourteen townships of Athens County, Ohio, United States.

The 2020 census found 556 people in the township.

Six sections forming the easternmost tier of the survey township were transferred in 1807 to Washington County.

The township is governed by a three-member board of trustees, who are elected in November of odd-numbered years to a four-year term beginning on the following January 1.

There is also an elected township fiscal officer,[5] who serves a four-year term beginning on April 1 of the year after the election, which is held in November of the year before the presidential election.