A local lord (or "Zaichi ryoshu" in Japanese) is an appropriator with the authority to control farmers and fishermen in his territory by executing authority under the Shoen koryo sei (System of Public Lands and Private Estates) in Medieval Japan.
在地領主（ざいちりょうしゅ）とは、中世日本の荘園公領制の下で在地（現地）において農民・漁民らを実際に支配する権限を持った領主のこと。