Bailey Gatzert (December 29, 1829 – April 19, 1893) was an American politician and the eighth mayor of Seattle, Washington, serving from 1875 to 1876.

[2] Gatzert was born in 1829 in Darmstadt, Grand Duchy of Hesse, and emigrated to Natchez, Mississippi, in 1849, coming west four years later.

[3] In addition to being mayor, Gatzert was charter member of the Seattle Chamber of Commerce, served on the Seattle City Council 1872–1873 and 1877–1878[5] and was president of Puget Sound National Bank and Peoples Savings Bank.

[3] He co-founded Washington's second synagogue (Seattle's first), Ohaveth Shalom,[3] which opened in 1892.

The famous sternwheeler Bailey Gatzert is named for him, as is an elementary school in Seattle.