The motion of an ion in a lower hybrid wave in a tokamak type plasma is studied. For ions with &ngr;⊥≳&ohgr;/k⊥the motion is stochastic for fields satisfyingE/B0≳ (1/4)(&OHgr;i/&ohgr;)1/3(&ohgr;/k⊥). Provided that the perpendicular phase velocity, &ohgr;/k⊥, can be slowed down to a few times the ion thermal speed, this stochastic ion motion may be an important mechanism by which injected rf power near the lower hybrid frequency can directly heat the ions.