Barnett–Chao Romanisation

The Cantonese Romanisation system known as Barnett–Chao (abbreviated here as B–C) is based on the principles of the Gwoyeu Romatzyh system (GR) developed by Yuen Ren Chao in the 1920s, which he modified in 1947. The B-C system is a modification in 1950 by K M A Barnett (an Administrative Officer of the Hong Kong Government) from Yuen Ren Chao's romanisation system. It was adopted by the School of Oriental and African Studies, London (SOAS).

Barnett-Chao was used in the Chinese Language Training Section (formerly the Government Language School) of the Government Training Division of the Hong Kong Government from 1963 to 1967 but its transcription was considered "over-complicated" for teaching Cantonese as a second language and abandoned in favour of Sidney Lau's version of Standard Romanisation.

After appearing in only a handful of texts, it fell into disuse.^{: 83 : 77}