Ox Horn Campus, Research campus in Dongguan, China.

Ox Horn Campus is a research and development centre built on the south shore of Songshan Lake in Dongguan, Guangdong. It comprises 108 buildings across twelve zones, each modelled on a European city or region, including Heidelberg Castle, the Cité Internationale Universitaire de Paris, Bruges, Český Krumlov, Verona, Bologna, Budapest, Tallinn and Granada. A two-line tram system, based on Stadler Rail trains used on the Jungfrau Railway, links the zones and crosses a bridge inspired by Budapest's Liberty Bridge.

Construction began in the late 2010s and the facility opened in 2019 as a research center for Huawei Technologies. The project was designed to bring together professionals from around the world to work on innovation and technology development.

The campus blends architectural references from different European cities, creating familiar settings for visitors and employees from around the world. These replicas of castles and university districts shape how people experience and move through the various zones on a daily basis.

A tram network connects different parts of the campus for easy transport between buildings and facilities. The site is quite large, so comfortable walking shoes and time to explore are recommended.

Some buildings replicate famous European landmarks such as Heidelberg Castle and the university district of Verona, giving the research campus an unusual appearance. This creates an international work environment that is rarely found in mainland China.