- - - Department of Mathematics, Lorestan University, P. O. Box ۴۶۵, Khoramabad, Iran
- - - Department of Mathematics, Lorestan University, P. O. Box ۴۶۵, Khoramabad, Iran

In this paper we introduce the concept of geometrically quasiconvex functions on the co-ordinates and establish some Hermite-Hadamard type integral inequalities for functions defined on rectangles in the plane. Some  inequalities for product of two geometrically quasiconvex functions on the co-ordinates are considered.

Hermite-Hadamard inequality, convex functions on co-ordinates, geometrically quasiconvex functions