| Oser | Oser (disambiguation) | Oser (surname) |
| Oser language | Oser, Charles | OSER1 |
| Osera de Ebro | Osera de Ebro, Spain | Osera de Ebro, Zaragoza |
| Oseran, Richard | Oserdów | Oserdow |
| Osered | Osered River | Osered' River |
| Oseredek | Oseredok | Oserheimen Osunbor |
| Oserian | Oserian F.C. | Oserian Fastac |
| Oserian FC | Oseriates | Oseriates (tribe) |
| Osericana | Osericta | Oserictops |
| Osero | OSERS | Oserya |
| OSES | Osesp | OSESP |
| Osesti | OSET | Oset and Rynningeviken Nature Reserve |
| Oset Chapel | Oseti | Osetia |
| Osetin | Osetin language | Osetinskaya |
| Osetinsky | Osetiya | Osetna |
| Osetne Pole | Osetnica | Osetnik |
| Osetnik, Pomeranian Voivodeship | Osetnik, Warmian-Masurian Voivodeship | Osetno |
| Osetno (disambiguation) | Osetno Małe | Osetno Male |
| Osetno, Lower Silesian Voivodeship | Osetno, Podlaskie Voivodeship | Osetno, Warmian-Masurian Voivodeship |
| Osetno, West Pomeranian Voivodeship | Oseto, Nagasaki | Osetoarthritis |
| Osetr class submarine | Osetr River | Osetr-class submarine |
| Osetra | Osetron | Osetrovka |
| Osetsky | Osetul River | OSEU |
| Oseuchi Dam | Osevek | Osevljek |
| Osew, Paul | Osewa | Osewo |
| Osey | Osey Ramulamma | Oseyemi |
| Oseyevskaya | Oseyf | Oseynabad |
| Oseynabad-e Kukok | Oseyni | Oseyo |
| Osez | Osez Joséphine | Osez Josephine |
| Osezhino | OSF | OSF (disambiguation) |
| OSF Children's Hospital of Illinois | OSF Digital | OSF Elizabethan Theatre |
| OSF Global Services | OSF HealthCare | OSF Healthcare |
| OSF Healthcare System | OSF Heart of Mary Medical Center | OSF Prepr |
| OSF Prepr. | OSF Preprints | OSF production history |
| OSF Research Institute | OSF RI | OSF Saint Anthony Medical Center |
| OSF Saint Francis Medical Center | OSF Saint Francis Medical Center Peoria, IL | OSF St. Joseph Medical Center |
| OSF-1 | OSF.8759 | Osf.io |
| OSF/1 | OSF/1 AXP | OSF/Motif |
| OSF1 | OsF6 | OSFA |
| OSFC | OSFED | OSFED, Other Specified Feeding or Eating Disorder |
| Osferth | Osfest | OSFI |
| Osfiya | OSFMK | Osfok |
| Osfor | OSFP | OSFP BC |
| OSFP FC | OSFP transceiver | OSFS |
| OSFTGH | Osfuk | OSG |
| OSG (disambiguation) | OSG Phoenix | OSG Ship Management |
| OSG.JS | Osgaig, Raasay | Osgan Efendi |
| Osgar | Osgar O'Hoisin | Osgathorpe |
| Osgathorpe, Leicestershire | Osgathorpe, South Yorkshire | OSGB |
| OSGB 1936 | OSGB 1936 / British National Grid | OSGB36 |
| Osge | Osgelu | OSGEMEOS |
| OSGeo | Osgeo | OSGEO |
| OSGeo Foundation | OSGEP | OSGEP (gene) |
| Osgerby | Osghul | OSGi |
| Osgi | OSGI | Osgi alliance |
| OSGi Specification Implementations | Osgiliath | Osgod |
| Osgod Clapa | Osgodby | Osgodby (disambiguation) |
| Osgodby Common | Osgodby Formation | Osgodby Hoard |
| Osgodby Point | Osgodby, Adam | Osgodby, Barlby with Osgodby |
| Osgodby, coastal North Yorkshire | Osgodby, Lincolnshire | Osgodby, North Yorkshire |
| Osgodby, Scarborough | Osgodby, Selby | Osgodby-by-the-Sea |
| Osgoldcross | Osgoldcross (constituency) | Osgoldcross (disambiguation) |
| Osgoldcross (UK Parliament constituency) | Osgoldcross (wapentake) | Osgoldcross by-election, 1899 |
| Osgoldcross Rural District | Osgoldcross Wapentake | Osgood |
| Osgood (disambiguation) | Osgood (surname) | Osgood Bradley Building |
| Osgood Bradley Car Company | Osgood Building | Osgood Carleton |
| Osgood Castle | Osgood Center for International Studies | Osgood Clapa |
| Osgood Company | Osgood Conklin | Osgood curve |
| Osgood Ditch | Osgood Family House | Osgood Farm |
| Osgood Fielding | Osgood Fielding III | Osgood Formation |
| Osgood Gamekeeper's Lodge | Osgood Golf Course | Osgood Hadley |
| Osgood Hanbury | Osgood Hill | Osgood Johnson |
| Osgood Mackenzie | Osgood Mountains | Osgood Perkins |
| Osgood Perkins II | Osgood Perkins Jr. | Osgood Pond |
| Osgood River | Osgood Robert Perkins II | Osgood Schlatter disease |
| Osgood Schlatter Disease | Osgood Schlatter's Disease | Osgood Schlatters |
| Osgood Shale | Osgood T. Hadley | Osgood's Ethiopian toad |
| Osgood's horseshoe bat | Osgood's Horseshoe Bat | Osgood's leaf-eared mouse |
| Osgood's Leaf-Eared Mouse | Osgood's Leaf-eared Mouse | Osgood's lemma |
| Osgood's mouse | Osgood's Mouse | Osgood's rat |
| Osgood's Rat | Osgood's short-tailed opossum | Osgood's Short-tailed Opossum |
| Osgood, Charles | Osgood, Chris | Osgood, ID |
| Osgood, Idaho | Osgood, IN | Osgood, In |
| Osgood, Indiana | Osgood, Iowa | Osgood, Kassim |
| Osgood, Keith | Osgood, Lawrence | Osgood, Missouri |
| Osgood, MO | Osgood, ND | Osgood, North Dakota |
| Osgood, OH | Osgood, Ohio | Osgood, Peter |
| Osgood, Robert | Osgood, Samuel | Osgood, Steven |
| Osgood, West Virginia | Osgood-Brown theorem | Osgood-Kuhnhausen House |
| Osgood-Schlatter | Osgood-Schlatter condition | Osgood-Schlatter disease |
| Osgood-Schlatter Disease | Osgood-Schlatter Syndrome | Osgood-Schlatter syndrome |
| Osgood-Schlatter's disease | Osgood-Schlaughter | Osgood-Schramm model |
| Osgood-Schramm Model | Osgood-type Scale | Osgood–Brown theorem |
| Osgood–Kuhnhausen House | Osgood–Schlatter disease | Osgood–Schlatter syndrome |
| Osgoode | Osgoode (disambiguation) | Osgoode (TTC) |
| Osgoode Hall | Osgoode Hall L.J. | Osgoode Hall Law J |
| Osgoode Hall Law J. | Osgoode Hall Law Journal | Osgoode hall law journal |
| Osgoode Hall Law School | Osgoode Hall law school | Osgoode Law School |
| Osgoode station | Osgoode Station | Osgoode Township |
| Osgoode Township High School | Osgoode Township High School (Metcalfe) | Osgoode Township High School (Ottawa) |
