Oper

Oper may refer to:

Technology

• Operator (disambiguation)
• IRC operator

Opera

• Deutsche Oper Berlin, Oper Leipzig, Komische Oper Berlin, Alte Oper
• Romantische Oper, genre of German opera

Surname

• Andres Oper, Estonian football player

Mathematics

• Oper (mathematics), a mathematical bundle on a punctured disc, equipped with a flat connection and an additional extra structure, called the "oper structure"