美国新闻署（英语：United States Information Agency，缩写为USIA），中文简称“美新署”，是一个支持美国的外交政策和国家海外利益的独立的外交事务机构，成立于1953年，直属白宫管辖，署长由美国总统任命、并直接向总统报告工作。1999年，美国新闻署被撤销，其对外广播职能由新成立的广播理事会继承，非广播业务则由美国国务院负责公共外交和公共事务的副国务卿（Under Secretary of State for Public Diplomacy and Public Affairs）管理。

The United States Information Agency (USIA), which existed from 1953 to 1999, was a United States agency devoted to public diplomacy. In 1999, USIA's broadcasting functions were moved to the newly created Broadcasting Board of Governors, and its exchange and non-broadcasting information functions were given to the newly created Under Secretary of State for Public Diplomacy and Public Affairs at the U.S. Department of State. The agency was previously known overseas as the United States Information Service.