Kūčios
Christmas Eve (Christianity) and its related observances:
Kūčios (Lithuania)
Quviasukvik
Christmas Eve (Christianity) and its related observances:
Quviasukvik, the Inuit new year (Alaska, Canada, Greenland and Russia)
Wigilia
Christmas Eve (Christianity) and its related observances:
Wigilia (Poland)
Christmas Peace
Christmas Eve (Christianity) and its related observances:
The Declaration of Christmas Peace (Old Great Square of Turku, Finland's official Christmas City)
Christmas Eve
Christmas Eve (Christianity) and its related observances:
Nochebuena (Spain and Spanish-speaking countries)
Nittel Nacht
Christmas Eve (Christianity) and its related observances:
Nittel Nacht (certain Orthodox Jewish denominations)
Yule and Christmas in Denmark
Christmas Eve (Christianity) and its related observances:
Juleaften (Denmark)/Julaften (Norway)/Julafton (Sweden)
Feast of the Seven Fishes
Christmas Eve (Christianity) and its related observances:
Feast of the Seven Fishes (Italian Americans)
Christmas in Iceland
Christmas Eve (Christianity) and its related observances:
Aðfangadagskvöld, the day when the 13th and the last Yule Lad arrives to towns. (Iceland)
December 24 (Eastern Orthodox liturgics)
Christian feast day:
December 24 (Eastern Orthodox liturgics)