DLS or D.L.S. may refer to:
Education Doctor of Liberal Studies, an academic degree
Organizations Democratic Left Scotland Danmarks Liberale Studerende or Liberal Students of Denmark Directorate Legal Services, or RAF Legal Branch Demosthenian Literary Society
Science Deep Lens Survey, Deep Gravitational Lensing Survey in astronomy Diamond Light Source, the UK's national synchrotron light source Directed line segment, a geometry concept Dynamic light scattering, a technique in physics Dynamic Label Segment in Digital Audio Broadcasting
Computers Depth-limited search DLS formats, for digital music Dynamic Languages Symposium, a SIGPLAN programming conference
Other uses Dominion Land Survey, Canada Duckworth–Lewis–Stern method of calculating cricket scores Columbia Gorge Regional Airport, US, IATA code