Addinin Buddah addini ne da falsafa wanda ya samo asali a tsohuwar Indiya kuma ya dogara ne akan koyarwar Siddhartha Gautama, wanda aka fi sani da Buddha. Kalmar "Buddha" ta fito ne daga kalmar "Buddha" wanda ke nufin "wanda aka tada" ko "wanda ya haskaka". Babban koyarwar addinin Buddah ya haɗa da Gaskiya huɗu masu daraja da Tafarki Mai Girma Takwas, waɗanda ke da nufin cimma ƙarshen wahala da samun 'yanci ko wayewa. Har ila yau, addinin Buddah yana siffanta shi ta hanyar mai da hankali kan tunani da ayyukan tunani a matsayin hanyar samun ci gaban ruhaniya da fahimta.