Main Page | See live article | Alphabetical index USO is a TLA that may stand for: Ultra stable oscillator Unidentified submarine object Union der Schülerorganisationen (uso.ch) Unique sink orientation United Service Organizations (US, uso.com, uso.org) Universal service obligation Universal Service Order UNIX Software Operation (AT&T) Utica Symphony Orchestra This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.