Where was Onibaba filmed?
1964 Japanese film by Kaneto Shindō
Onibaba (1964) was filmed in Lake Inba, 1 place named in its Japanese Wikipedia’s 概要 section, in Japan. Wikidata records no filming location for it at all, so the article is the only recorded source. Each place says where its claim comes from.
Places per Japanese Wikipedia's 概要 section
Japanese Wikipedia’s 概要 section names 1 place. Each links to the sentence that says so.