Yakin Peninsular (1807-1814) shine rikicin soja da aka yi a yankin Iberian da Spain, Portugal, da Ingila suka yi a kan mamaya da mamaye sojojin Faransa na farko a lokacin yakin Napoleon.A cikin Spain, ana la'akari da shi tare da Yaƙin 'Yancin Mutanen Espanya.Yakin ya fara ne lokacin da sojojin Faransa da Spain suka mamaye kasar Portugal a shekarar 1807 ta hanyar wucewa ta kasar Sipaniya, kuma ya yi kamari ne a shekara ta 1808 bayan Napoleon Faransa ta mamaye kasar Spain, wadda ita ce kawarta.Napoleon Bonaparte ya tilasta wa Ferdinand VII da mahaifinsa Charles IV murabus sannan ya dora dan uwansa Joseph Bonaparte a kan karagar Sipaniya kuma ya kaddamar da Kundin Tsarin Mulki na Bayonne.Yawancin Mutanen Espanya sun yi watsi da mulkin Faransa kuma sun yi yaƙi mai zubar da jini don kawar da su.Yakin da aka yi a mashigar ya ci gaba har zuwa lokacin da kawance na shida ya yi nasara kan Napoleon a shekara ta 1814, kuma ana daukarsa a matsayin daya daga cikin yakin 'yantar da kasa na farko kuma yana da matukar muhimmanci ga bullar manyan yakin neman zabe.