The Hebrew prayer recited in memory of the dead during the mourning period and to mark the anniversary of the death of a loved one. People can say Kaddish for people they don’t know, too. For instance, to remember those who died in the Holocaust. Interesting fact – death isn’t mentioned in the Kaddish, instead the prayer is largely focused on praising God.

Yitgadal v’yitkadash sh’mei raba b’alma di-v’ra
chirutei, v’yamlich malchutei b’chayeichon
uvyomeichon uvchayei d’chol beit yisrael, ba’agala
uvizman kariv, v’im’ru: “amen.”
Y’hei sh’mei raba m’varach l’alam ul’almei almaya.
Yitbarach v’yishtabach, v’yitpa’ar v’yitromam
v’yitnaseh, v’yithadar v’yit’aleh v’yit’halal sh’mei
d’kud’sha, b’rich hu, l’eila min-kol-birchata v’shirata, tushb’chata
v’nechemata da’amiran b’alma, v’im’ru: “amen.”

Y’hei shlama raba min-sh’maya v’chayim aleinu
v’al-kol-yisrael, v’im’ru: “amen.”

Oseh shalom bimromav, hu ya’aseh shalom aleinu
v’al kol-yisrael, v’imru: “amen.”