Udo is a masculine given name.

Udo or UDO may also refer to:

Places

• Udo (island), an islet off Jeju Island, South Korea

Plants

Another name for Aralia cordata, a plant native to Asia.

Culture

• U.D.O., heavy metal band formed in 1987
• United Dance Organisation (UDO), world’s largest street dance organisation
• Udo-jingū, a Shinto shrine in Nichinan, Miyazaki prefecture, Japan
• Udo the Red Panda, mascot of the University of Mannheim
• Tommy Udo, a character in the 1947 film Kiss of Death

Sports

• União Desportiva Oliveirense (UDO), commonly known as UD Oliveirense or simply Oliveirense, a Portuguese sports club

Other uses

• UDO (markup language), a lightweight markup language
• Ultra Density Optical (UDO), an optical disk format for data storage
• Unified Development Ordinance (UDO), a local policy instrument combining zoning and other regulations
• Udo, a common name for the Japanese flowering plant Aralia cordata