Yongwang

Yongwang, the Dragon King, rules the sea and its waters in Korean folk religion, a figure closely related to the wider East Asian tradition of dragon kings governing bodies of water found across Chinese and Japanese folk belief, adapted within Korean Muism into a deity of particular importance to the country's fishing communities and to anyone whose livelihood or safety depends on the sea.

Coastal and island villages historically maintained shrines and conducted periodic gut ceremonies specifically addressed to Yongwang, requesting good catches, safe passage for boats, and protection from storms and drowning, and the god remains today one of the most actively invoked figures in Korean shamanic practice wherever fishing continues as a significant local livelihood, reflecting how directly Korean folk religion's pantheon tracks the practical economic and physical risks a given community actually faces. Yongwang is also associated more broadly with rain and freshwater sources inland, extending his domain beyond the ocean itself to rivers, wells and the general provision of water a farming community depends on.

Yongwang belongs to a family of East Asian dragon-king sea deities that also includes the Chinese Dragon Kings of the Four Seas and figures within Japanese Shinto and Ryukyuan tradition, and Korean Muism's version reflects the same broader East Asian cosmological pattern, a dragon ruling the waters from an undersea palace and commanding weather and fortune connected to water, while developing its own specifically Korean ritual practice through the mudang-led gut ceremony rather than through the more institutional Daoist or Buddhist temple cult found in some neighbouring traditions. Kendall's ethnographic work on Korean shamanism documents Yongwang worship as remaining genuinely active in coastal Korea into the present day, standing alongside figures such as Sanshin and the household gasin as one of the deities most likely to still receive an actual living gut ceremony rather than surviving only as historical folklore, precisely because the practical concerns Yongwang addresses, safety and success at sea, remain immediate and real for the fishing communities that continue to honour him.