SLA

SLA may refer to:

in geography,

• Martín Miguel de Güemes International Airport, Salta Province, Argentina (by IATA code)
• South Los Angeles
• State Line Avenue, in Texarkana, United States

in science and engineering,

• Sealed lead-acid, a type of lead-acid battery
• Second-language acquisition, the process by which people learn additional languages
• Short long arms suspension, a wheel suspension type for vehicles with wishbones of unequal length
• Specific leaf area, a botanical term describing a property of a leaf on a plant, often used as a measure of leaf "thickness"
• Stanford Linear Accelerator, a United States Department of Energy National Laboratory operated by Stanford University
• Stereolithography apparatus, a type of rapid prototyping machine

in organizations,

• Saint Lawrence Academy (Santa Clara), a college preparatory school located in California, United States
• St Lawrence Academy, Scunthorpe, a Church of England secondary school in Lincolnshire, England
• Science Leadership Academy, a public high school in Philadelphia, Pennsylvania
• School Library Association, an association for school librarians
• Sindhi Language Authority, A governmental institute for the Sindhi language development.
• Sindhudesh Liberation Army, a separatist militant organisation in Sindh, Pakistan
• South Lebanon Army, an Israeli-backed militia during the Lebanese Civil War
• Special Libraries Association, an association for professional librarians working in specialized libraries
• Sri Lanka Army, the oldest and largest of Sri Lanka's armed services
• State Liquor Authority, New York State organization that enforces liquor laws
• Sudan Liberation Movement/Army, a rebel group in the Sudanese region Darfur
• Symbionese Liberation Army,1970's Radical group and kidnappers of Patricia Campbell Hearst
• Sociedat de Lingüistica Aragonesa, Aragonese language society
• Singapore Land Authority, a statutory board under the Ministry of Law of Singapore

in other uses,

• Service-level agreement, a contractual agreement on the level of service to be provided by a service provider to a customer, commonly used in computer-related services
• Single life annuity, a form of recurring payment
• SLA Industries, a role-playing game written by Nightfall Games
• Savings and loan association, savings banks in the United States of America
• Slow left arm, a bowling style in cricket
• Software license agreement, a contract placing restrictions on the use of software
• .sla, a file extension used in the open-source software Scribus
• The Softwood Lumber Agreement, part of the United States–Canada trade dispute
• Salicylate-like aromatics, including natural benzoates, gallates, polyphenols and flavinoids, that may cause cross-reactivity symptoms in salicylate-sensitive individuals