LOA

LOA may stand for:

Music

 * Life of Agony, a New York hardcore/hard rock band
 * Lights Out Asia, a Milwaukee, Wisconsin-based post-rock and ambient band
 * Lords of Acid, a Belgian-American post-industrial/techno band
 * "Love on Arrival," a song by country music singer Dan Seals

Other

 * Lake Oconee Academy, Georgia
 * Law of attraction, a belief of New Thought movement
 * Leave of absence, a period of time that one must be away from his/her primary job, while maintaining the status of employee.
 * Level of assurance
 * Length overall, the maximum length of a vessel's hull measured parallel to the waterline.
 * Letter of Agency (also Letter of Authorization), a document authorizing a telecommunications provider to act on a consumer's behalf
 * Letter of Authority, a legal document in South Africa for vehicle registration
 * Library of America, an American publisher
 * Library Oriented Architecture, a software engineering methodology
 * Lines of Action, an abstract-strategy game
 * Left occipito-anterior, a cephalic presentation in childbirth
 * Low-opioid anesthesia, a variant of, general anesthesia
 * Limits of Agreement, a statistical measure used when comparing the degree of agreement among raters