  We investigate the effects of space noncommutativity and the generalized
uncertainty principle on the stability of circular orbits of particles in both
a central force potential and Schwarzschild spacetime. We find noncommutative
form of the effective potential which up to first order of noncommutativity
parameter contains an angular momentum dependent extra term. This angular
momentum dependent extra term affects the stability of circular orbits in such
a way that the radius of a stable circular orbit in noncommutative space is
larger than its commutative counterpart. In the case of large angular momentum,
the condition for stability of circular orbits in noncommutative space differs
considerably from commutative case.
