The Comptroller General's Department (CGD) (Thai: กรมบัญชีกลาง; RTGS: krom banchi klang) is a Thai government agency under the Ministry of Finance.

[1] In accordance with the Royal Treasury Ministry Act, the Comptroller General's Department was established on 7 October 1890.

It was originally named the Accountant-General's Department.

Its core mission is to manage the nation's revenues and expenditures as well as royal accounts in order to ensure lawful use of the national budget to the country's benefit.

The Comptroller General's Department has four main missions as follows: