诸圣节（英语：All Saints' Day，拉丁语：Sollemnitas Omnium Sanctorum，希腊语：Άγιοι Πάντες，西班牙语：Día de Todos los Santos，俄语：Собор всех святых），又称万圣节，是天主教、圣公宗和东正教都有的节日。在天主教会和圣公会中，诸圣节在每年的11月1日。在正教会中，诸圣节是圣灵降临节（Pentecost）之后的第一个星期日，因而标志着复活节季度的结束。

诸圣是一个天主教、圣公宗和东正教的称呼，用于所有忠诚的圣者和殉道者，包括知名的和不知名的。这个节日是天主教和圣公宗的炼灵月的首日，是以圣者的名义庆祝的节日，而这日是用作庆祝所有被列入圣品的圣人的瞻礼。

All Saints' Day, also known as All Hallows, Day of All the Saints, Solemnity of All Saints, or Feast of All Saints is a festival celebrated on 1 November by the Latin Church of the Roman Catholic Church and some other Western Christian traditions, and on the first Sunday after Pentecost in Eastern Catholicism and Eastern Orthodoxy, in honour of all the saints, known and unknown. The liturgical celebration begins at Vespers on the evening of 31 October and ends at the close of 1 November. It is thus the day before All Souls' Day.