The Teng Yun (Chinese: 騰雲; pinyin: Téng yún, “Cloud Rider”) is a UAV under development by the National Chung-Shan Institute of Science and Technology (NCSIST) of Taiwan.

The 2019 defense budget allocated funds to build a significant number of Teng Yun systems.

Taiwan’s Air Force declined to procure the platform over concerns about the reliability of its electronic systems.

[5] In June 2022 one of the improved variants, dubbed the Teng Yun 2, completed a ten hour test flight.

[6] In February 2021 one prototype of the first generation Teng Yun crashed in Taitung Forest Park during a test flight.