The title compound, C(14)H(9)F(4)NO(2), is a Schiff base which adopts the phenol-imine tautomeric form in the solid state. The H atom is located on the hydr-oxy O atom rather than on the N atom. This H atom is involved in a strong intra-molecular O-H⋯N hydrogen bond. The mol-ecule is almost planar, the angle between the benzene rings being 2.14 (13)°.