RLS

RLS may refer to:

Education

 * Royal Latin School, a grammar school in Buckingham, England
 * Stevenson School, formerly Robert Louis Stevenson School, California

Science and technology

 * Recursive least squares filter, in minimisation
 * Regularized least squares, for solving least-squares problems
 * Reef Life Survey, a marine monitoring program in Tasmania
 * Restless legs syndrome, a medical disorder

Other uses

 * Real-life slash, a subgenre of real person fiction
 * Rial (disambiguation), plural abbreviation Rls, Middle Eastern currency units
 * Robert Louis Stevenson, Scottish writer