Ethylbenzene hydroperoxide is the organic compound with the formula C<sub>6</sub>H<sub>5</sub>CH(O<sub>2</sub>H)CH<sub>3</sub>. A colorless liquid, EBHP is a common hydroperoxide. It has been used as an O-atom donor in organic synthesis. It is chiral. Together with tert-butyl hydroperoxide and cumene hydroperoxide, ethylbenzene hydroperoxide is important commercially.
The compound is produced by direct reaction of ethylbenzene with oxygen, an autoxidation.