Ruo

Ruo or RUO may refer to: Ruo (state), a small vassal state during the Chinese Zhou Dynasty Istro-Romanian language, spoken in Croatia (ISO 639 code = ruo) Huang Ruo, a Chinese-born American composer Ruo River, a tributary of the Shire River in Malawi and Mozambique Ruo Shui, a large river of northern China Emoh Ruo, a 1985 Australian comedy film Ruo, Federated States of Micronesia, a village and municipality in the state of Chuuk RUO, an abbreviation for "Research Use Only": designation for diagnostic products or reagents by the FDA