KSA is the Kingdom of Saudi Arabia.
KSA or Ksa may also refer to:
Arts and media KSA-TV, Alaska, US Kirby Star Allies, a 2018 video game Kitten Space Agency, a video game in development by RocketWerkz
Aviation Kosrae International Airport (IATA airport code), Federated States of Micronesia Kingsford-Smith Airport or Sydney Airport, Australia
Computing Key-scheduling algorithm, in cryptography Kogge–Stone adder
Organisations Kenya Scouts Association Kommando Strategische Aufklärung (Strategic Reconnaissance Command), a German intelligence organization Korea Scout Association Korean Standards Association Kosher Supervision of America
Schools Korea Science Academy, Busan, South Korea Ohio State University Knowlton School of Architecture, housed in Knowlton Hall
Other uses Ksa (spirit), a Native American Lakota and Oglala spirit of wisdom King's South Africa Medal, a medal for service in the Boer War Knowledge, Skills, and Abilities, on US government job applications KSA, a kölsch-style ale by Fort Point Beer Company