美国战争情报局（英文：The United States Office of War Information，OWI）是在第二次世界大战期间创建。起主要作用在于保护当时政府信息服务，并且在美国国内与国外进行战争宣传。从1942年6月到1945年9月这一段时间内，其通过电台、报纸、海报、照片、电影和其他形式的媒体，对国民与敌人进行宣传工作，以保障能够在战争道义上获得优势，是美国政治宣传主要负责部门。

The United States Office of War Information (OWI) was a United States government agency created during World War II to consolidate existing government information services and deliver propaganda both at home and abroad. OWI operated from June 1942 until September 1945. Through radio broadcasts, newspapers, posters, photographs, films and other forms of media, the OWI was the connection between the battlefront and civilian communities. The office also established several overseas branches, which launched a large-scale information and propaganda campaign abroad.