Composers and Authors Society of Hong Kong Ltd. (Chinese: 香港作曲家及作詞家協會有限公司; CASH) is a copyright collection society in Hong Kong established in 1977 which aims to administer and enforce collectively the rights of composers and authors (lyricists) of musical works subsisting under the copyright law of Hong Kong.

All licence fees received after deduction of its administrative costs are distributed to local Members and overseas affiliated societies.

Composers and Authors Society of Hong Kong Limited was incorporated on 23 September 1977.

It was established by a group of local composers to replace the UK-based Performing Rights Society in Hong Kong, which had been operating in the city since 1946.

[2] To be eligible as a member of CASH, one must be either a writer (including composers and authors) or a music publisher: Writer (including composers and authors) Hong Kong Identity Card holder; Original composer and / or lyricist; and Meeting one of the following 2 conditions : (i) At least 1 work having been commercially published; or (ii) 3 counts of original created work having been broadcast or made available or publicly performed by CASH licensees or in CASH licensed venues irrespective of the number of works involved.