noun
folk beliefs; folk religion
Refers to traditional, often local, religious practices and beliefs outside organized religion. Used in academic and general contexts.
日本の民間信仰には、道祖神や地蔵などへの信仰が含まれる。
Japanese folk beliefs include worship of roadside deities and Jizo statues.
民俗宗教 is a broader academic term for folk religion as a category, while 民間信仰 often emphasizes the beliefs and practices themselves.
Compound of 民間 (folk, popular) and 信仰 (belief, faith).