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We investigate the relation between commensurability oscillations and current How direction in lateral two-dimensional anisotropic antidot lattices. The anisotropy is introduced as one-directional Buctuation or expansion of the lattice spacing. The Quctuation of the antidot location suppresses the peaks of commensurability oscillations. The suppression is dominated by the Quctuation perpendicular to the current How direction. In one-directional expanded lattices, the peaks appear at the magnetic Belds which correspond to the cyclotron motions with the diameter of the periods perpendicular to the current. These results suggest that the commensurability oscillations are determined only by the period along the direction perpendicular to the current.