2 Laboratorio de Cosmologia e Fsica Experimental de Altas Energias,

We construct a spacetime whose only source of curvature is a Dirac magnetic monopole, and whose geometry inherits the structure of lines of singularities of the monopole electromagnetic potentials. The spacetime has the topology S 3 R, is stationary and asymptotically at but not asymptoti-cally Minkowskian, with its at null innity having the topology of S 3. These mild pathologies, as acausality and string structure, allow the spacetime conguration to have a gravitational magnetic mass, which results proportional to the charge of the monopole. This suggests that the Dirac monopole may be the source of magnetic mass in gravitational congurations, which has no Newto-nian analogue. Also has the role of a NUT parameter in the metric of the spacetime, suggesting that the charge of the monopole can provide a physical realization of the NUT parameter.