The full form of C.A. is Chartered Accountant.

Chartered accountants were the first accountants to form a professional accounting body, initially established in Scotland in 1854. The Edinburgh Society of Accountants (1854), the Glasgow Institute of Accountants and Actuaries (1854) and the Aberdeen Society of Accountants (1867) were each granted a royal charter almost from their inception. The title is an internationally recognised professional designation; the certified public accountant designation is generally equivalent to it. Women were able to become chartered accountants only following the Sex Disqualification (Removal) Act 1919 after which, in 1920, Mary Harris Smith was recognised by the Institute of Chartered Accountants in England and Wales and became the first woman chartered accountant in the world.