PSA

PSA may refer to:


 * New Zealand Public Service Association, a large union for workers in the public sector of New Zealand
 * Parramatta Salvation Army, A Salvation Army Corps in the Western Suburbs of Sydney, Australia
 * Poultry Science Association, a poultry science association based in the United States.
 * Premier Soccer Alliance, the original name of the World Indoor Soccer League
 * Production sharing agreement, an agreement used to determine a company's share of natural resources extracted from a country
 * Professional Services Automation, refers to a suite of software enabling service organizations to manage people and skilled resources
 * Professional Squash Association, the governing body for the men's professional squash circuit
 * Phoenix Shooters Association, A well-known UK target shooting club.


 * Profit Sharing Agreement, a financial arrangement between a company and a government for the company to extract oil or other resources and provide a portion of the profits from such extraction to the government
 * Property Services Agency, a former agency of the UK government concerned with buildings and estate management
 * "PSA", the planned title of the song and single "Bad Day" by R.E.M.
 * Public Securities Association, the former name of the Bond Market Association
 * PSA prepayment model, a prepayment model developed by the Public Securities Association
 * Public service announcement, a non-commercial advertisement, broadcast for the public good
 * Public Servants Association of South Africa, a trade union in South Africa
 * Public Services Association, a trade union in Trinidad and Tobago

Transport

 * Galileo Galilei Airport, near Pisa, Italy with IATA code PSA.
 * Pacific Southwest Airlines, a former United States airline that flew passenger services in some Western states during the 1970s and early 1980s
 * PSA Airlines, a subsidiary of US Airways Group
 * PSA International, a port operator based in Singapore and an abbreviation for the now defunct Port of Singapore Authority
 * PSA Peugeot Citroën, a French company which manufactures Peugeot and Citroën cars

Science and medicine

 * Patient Safety Authority, a Pennsylvania state agency and Patient safety organization
 * Persistent sexual arousal syndrome, a spontaneous and persistent genital arousal
 * Pharmaceutical Society of Australia, a professional organisation of Australian pharmacists
 * Polar surface area, the surface sum over of polar atoms, e.g. oxygen, nitrogen, etc
 * Polysialic acid
 * Prefixed Save Area, a common area of virtual storage from address zero through 8191 in every address space
 * Pressure Swing Adsorption, a special method for purifying gases
 * Pressure sensitive adhesive, adhesive that is activated by pressure
 * Probabilistic safety assessment or Probabilistic risk assessment
 * Prostate specific antigen, a substance that can be detected in the blood of men and which helps to determine if there may be a prostate cancer
 * Pushdown Stack Automaton

Education and academia

 * Pacific Sociological Association, the professional association of sociologists in the Pacific Region of North America
 * Peel Summer Academy, a Mississauga based overnight camp
 * Philosophy of Science Association, an academic organization which promotes further studies and free discussion from diverse standpoints in the field of philosophy of science
 * Polish Society of Actuaries, the professional association in Poland
 * Political Studies Association, an academic association in the UK
 * Public Schools Association, an association of seven independent boys schools in Perth, Western Australia

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