This list of mythical creatures that begin with this letter and I am constantly gathering information from each continent, and is continually being updated.
Urias (Romanian)
Urias (plural uriasi) is the common Romanian-language designation of giants, who are prominent figures in Romanian folklore. There are several varieties of uriasi, who share most of their traits but have different names from one historical region of Romania to another.
Jidovi is the term used mainly in Oltenia, and its bearers are supposed to be creators of large mounds, and, in some legends, they play an evil role. Novaci is used mainly in Muntenia, for creatures who are mainly associated with the Southern Carpathians.