Finding Tattoo Friendly Onsens

Since making this guide more online resources have been created to categorize resources for tattoo friendly onsens! I try to keep this list updated. See below for links to more guides:

(General) Japanese Onsen - a directory where you can filter a search for tattoo friendly locations, along with scenic, types of bath, etc

https://japanese-onsen.com/ryokans-tattoo-friendly-onsen/?_ryokan_types=tattoos-allowed

(General) 30 Tattoo Friendly Onsen in Japan

https://travel.gaijinpot.com/japan-sightseeing-essentials/30-tattoo-friendly-onsen-in-japan/

(Region Specific) The Ultimate 2025 Map Guide to Tattoo Friendly Onsen in Beppu

https://enjoyonsen.city.beppu-jp.com/onsen/100tattoo-friendly_beppuonsen_japan/

(Region Specific) Tattoo Friendly Onsen of Kinosaki

https://visitkinosaki.com/plan/visitor-info/guides/tattoos-in-kinosaki-onsen/