No, water (H2O) does not have resonance structures.
Resonance structures are different ways of drawing the same molecule that account for delocalized electrons, which typically occur in molecules with double bonds or lone pairs that can be shared between atoms. In the case of H2O, the molecule consists of two hydrogen atoms bonded to a central oxygen atom through single bonds. The oxygen atom has two lone pairs of electrons.
Since there are no multiple bonds or options for electron delocalization in H2O, there are no alternative structures that can represent the molecule’s bonding pattern. The single structure accurately represents the arrangement of electrons and the geometry of the molecule, which is bent due to the repulsion between the lone pairs. Therefore, while we can draw H2O in a Lewis structure format, there are no resonance structures to draw for water.