A liminal deity is a god or goddess in mythology who presides over thresholds, gates, or doorways; "a crosser of boundaries".
The word "liminal", first attested to in English in 1884, comes from the Latin word "limen", meaning "threshold". "Liminality" is a term given currency in twentieth century anthropology by Victor Turner of the University of Chicago.
Hecate, goddess of magic, witchcraft, the night, moon, ghosts, crossroads and necromancyHermes, god of messengers, omens, roads, travellers, border crossings, trade, protection of the home, thievery, cunning wiles, and animal husbandry; messenger of the gods and guide of the deadRoman mythologyCardea, goddess of health, thresholds and door hinges and handlesForculus, Lima, and Limentinus, minor deities of thresholds or doorways; see indigitamentaJanus, dual-faced god of gates, doors, doorways, beginnings and endings, for whom January is namedMercury, messenger of the gods and guide of the dead; equivalent to the Greek god HermesPortunes, god of keys, doors and livestockTerminus, god who protected boundary markersTrivia, goddess of witchcraft, the three-way crossroads, and the harvest moon; equivalent to the Greek goddess HecateBaltic mythologyUžsparinė, Lithuanian goddess of land bordersChinese mythologyChen Huang Shen, the God of Walls and MoatsMen Shen, the Gods of DoorsChen Wenlong, God of City Walls in FuzhouFan Zeng, God of City Walls in Hezhou and He countyGuan Ying, God of City Walls in Longxing, Gan, Yuan, Jiang, Ji, Jianchang, Linjiang, Nanchang and NankangHuang Xie, God of City Walls in SuzhouHuo Guang, Yu Bo and Chen Huacheng, Gods of City Walls in ShanghaiJi Shun, God of City Walls in Zhengzhou, Zhenjiang, Qingyuan, Ningguo, Taiping, Xiangyang, Xingyuan, Fuzhou, Nanan and HuatingJian Yi, God of City Walls in TanghongzhouJiao Ming, God of City Walls in EzhouLiu Zhongyuan, God of City Walls in LiuzhouPang Yu, God of City Walls in XiaoxingQu Tan, God of City Walls in TaizhouShen Sheng, God of City Walls in WuzhouSu Jian, God of City Walls in YongzhouTe Xuan, God of City Walls in JinanWen Tianxiang, God of City Walls in HuangzhouXiao He, God of City Walls in GuYang Jianshan, God of City Walls in BeijingYao Yichung, God of City Walls in XingguojunYing Bu, God of City Walls in Zhenzhou and LiuheYing Zhixu, God of City Walls in YunzhouZhou Ke, God of City Walls in JiangyinZhu Yigui, God of City Walls in XiaonanmenKorean mythologyJangseung, a totem pole traditionally placed at the edges of villages to mark for village boundaries and frighten away demons; also worshipped as tutelary deitiesMunshin, Korean deity of the door. He was considered one of the most powerful of the house gods (Gashin), especially in Jeju Island.HinduismGanesha, a messenger of the gods and goddesses who must be propitiated before any of the other deitiesPushan, solar deity and psychopomp responsible for marriages, journeys, roads, the feeding of cattle, and overseeing the journey of the dead to the afterlifeAfrican religionLegba, phallic crossroad spirit and trickster in West African Vodun, he is the bringer of magic, master diviner and speaker of every language who facilitates communication between man and the gods. Legba is also the remover of obstacles and the guardian of the home and crossroads.Afro-American religionEllegua, the messenger god and psychopomp in Santería, Louisiana Voodoo, Haitian Voodoo, and Candomblé