Teagasc (Irish pronunciation: [ˈtʲəɡəsˠk], meaning "Instruction") is the semi-state authority in the Republic of Ireland responsible for research and development, training and advisory services in the agri-food sector.
The official title of the body is Teagasc - The Agriculture and Food Development Authority. In 1988 Teagasc succeeded An Foras Talúntais/The Agricultural Institute (AFT) which was responsible for agricultural research, and An Chomhairle Oiliúna Talmhaíochta/The Agricultural Training Council (ACOT) which was responsible for education and advisory services.
The authority has a number of county advisory centres, colleges and research centres in which it carries out its main business. The Teagasc headquarters are located in the Oak Park Estate in Carlow.