OWS

OWS may refer to


 * Occupy Wall Street, a political protest starting in 2011 that originated in New York City at Zucotti Park
 * OGC Web Service Common, a standard of the Open Geospatial Consortium
 * Oil–water separator, a device to separate oil and water
 * Oily water separator, shipboard equipment
 * Open water swimming, outdoor swimming in open lakes, rivers, and oceans
 * Open Whisper Systems, a nonprofit open-source software group
 * Open Window School, a private school located in Bellevue, Washington
 * Operation Warp Speed, the United States national program to accelerate the development, manufacturing, and distribution of COVID-19 vaccines, therapeutics, and diagnostics.
 * Opioid Withdrawal Syndrome
 * Optional White Space (computer science), sometimes used when defining a grammar or protocol specification, see Metasyntax
 * Order of World Scouts, the first international Scouting organisation
 * Oritsé Williams, former member of JLS
 * Overhead Weapon Station, a remote weapon station
 * Ocean Weather Ship (or Station), a past programme involving meteorological ships located in the ocean for use in weather forecasting