Majalisar Tattalin Arziki da Zamantakewa (ECOSOC) tana ɗaya daga cikin manyan sassa shida na Majalisar Ɗinkin Duniya, wadda aka kafa a shekarar 1945. Babban aikinta shi ne inganta haɗin gwiwar tattalin arziki da zamantakewa da ci gaban ƙasa da ƙasa. Yana aiki a matsayin dandalin tattaunawa da yanke shawara kan batutuwa masu yawa na tattalin arziki, zamantakewa, da muhalli, kuma yana ba da shawarwari kan manufofi da shirye-shirye don magance waɗannan batutuwa. Kungiyar ta ECOSOC ta kunshi kasashe membobi 54, wadanda babban taron majalisar za su zaba na tsawon shekaru uku.