區域市政總署係香港區域市政局嘅執行部門，前身係市政事務署新界市政署，喺1985年4月1號至1999年12月31號期間為新界地區提供市政服務。區域市政總署署長同時擔當區域市政局嘅行政總裁。
The Regional Municipal Affairs Bureau (RCM) is the executive arm of the Regional Council of Hong Kong, formerly known as the Municipal Affairs Department of the New Territories, which provided municipal services to the New Territories from 1 April 1985 to 31 December 1999. The Director of the Regional Municipal Administration is also the Chief Executive Officer of the Regional Council.