The National Committee for Latin and Greek, a standing committee of the American Classical League (ACL), is a non-profit organization, founded by twelve national and regional classical associations over 40 years ago and funded by donations from various associations along with other state associations, and individual donors. The NCLG is dedicated to the advancement of the study of ancient languages and civilizations, with a focus on Latin and Greek, by developing an agenda of promotional advocacy, supportive projects and activities within North America.

The NCLG is made up of volunteer officers and committee members from any of its sponsoring organizations and holds open meetings twice a year. It serves as a forum for the identification of nationwide needs and priorities within Latin and Greek Studies and for the subsequent planning and implementation of promotional strategies, programs, and classroom resources. The NCLG provides a consensus of direction for advocacy, drawing upon information, talents, and resources from constituent and affiliate organizations. The Committee endeavors to focus public awareness on the study of Latin, Greek, and the Classics through its public advocacy contacts with schools, universities, and governing agencies. The NCLG produces a variety of fliers about their current work. The Committee works to highlight opportunities and to respond to crises affecting Classics programs in schools and universities through letters, contacts, and petition signatures. It communicates with the officers of sponsoring organizations through its open meetings and the monthly Newsletter of the ACL. 

Its financial support for and consistent participation on the Board of the JNCL-NCLIS, the Joint National Committee for Languages and the National Council for Languages and International Studies, and its cooperation with modern language associations nationwide encourages participation in the development of national language policy and in movements to advocate and to improve both content (classroom resources, conference panels) and government funding (for language education-related bills, grants, teacher training, international programs and exchanges, Title Acts,) for the study of all languages, ancient and modern.  

The Committee relies on the expertise and financial resources of five founding sponsors, its parent organization, and others. In addition to financial contributors, a number of other organizations such as the American Classical League, The Society for Classical Studies, Eta Sigma Phi National Honorary Society, National Latin Exam Committee, National Junior Classical League, and international affiliate organizations, such as the Ontario Classical Association, the Classical Association of Britain, and the Netherlands Classical Association have worked alongside NCLG on mutually beneficial initiatives and in facing some current issues.