The leaching of uranium from Wadi Nasib ore using sulfuric acid solution has been studied. The effect of different parameters such as leaching time, sulfuric acid concentration, solid/liquid ratio, leaching temperature and mechanical stirring speed were investigated in order to optimize various process parameters for maximizing the recovery of uranium. Uranium dissolution efficiency of 98.5% was obtained for Wadi Nasib ore after 4 hours contact time leaching using 200 g L^-1 H₂SO₄ and solid/liquid ratio 1/4 at leaching temperature 80°C and 400 rpm mechanical stirring speed without any oxidant addition. The kinetic data showed that the leaching process can be described by a shrinking-core model with apparent activation energy equals to 16.2 kJ/mol. The low activation energy supported the findings that the Wadi Nasib leaching rate is controlled by diffusion-controlled process.