We report the discovery of a planet — OGLE-2014-BLG-0676Lb— via gravitational microlensing . Observations for the lensing event were made by the MOA , OGLE , Wise , RoboNET/LCOGT , MiNDSTEp and \mu FUN groups . All analyses of the light curve data favour a lens system comprising a planetary mass orbiting a host star . The most favoured binary lens model has a mass ratio between the two lens masses of ( 4.78 \pm 0.13 ) \times 10 ^ { -3 } . Subject to some important assumptions , a Bayesian probability density analysis suggests the lens system comprises a 3.09 _ { -1.12 } ^ { +1.02 } M _ { J } planet orbiting a 0.62 _ { -0.22 } ^ { +0.20 } M _ { \odot } host star at a deprojected orbital separation of 4.40 _ { -1.46 } ^ { +2.16 } AU . The distance to the lens system is 2.22 _ { -0.83 } ^ { +0.96 } kpc . Planet OGLE-2014-BLG-0676Lb provides additional data to the growing number of cool planets discovered using gravitational microlensing against which planetary formation theories may be tested . Most of the light in the baseline of this event is expected to come from the lens and thus high-resolution imaging observations could confirm our planetary model interpretation .