Alert, Ohio
[Image:OHMap-doton-Alert.png|right|Location of Alert, Ohio]
Alert is an unincorporated community in southern Morgan Township, Butler County, Ohio, in the United States. It is located about ten miles southwest of Hamilton on Howards Creek, a tributary of the Great Miami River in section 28 of R1ET3N of the Congress Lands. It is three miles west of Shandon and two miles south of Okeana.