OCA
OCA ko Oca na iya nufin to:

Gwamnati 

 Kotun Daukaka Kara na Ontario, wanda ake kira Kotun Daukaka Kara ta Ontario
 Ofishin Abokin Ciniki (Kanada), hukumar masana'antu ta Kanada
 Kwamitin wasannin Olympic na Asiya, hukumar gudanar da wasanni a Asiya
 Hukumar Shirya Laifuka da Kuɗi ta New Zealand, wacce aka fi sani da Hukumar Laifin Laifuka
 Hukumar Shirya Laifuka ta British Columbia (1999–2004), magabacin Sashin Ƙarfafa Ƙarfafa Sojoji na Musamman.
 Hukumar Ƙungiyoyin Ƙasashen waje, hukuma ce da ke ba da sabis na birni ga al'ummomi a Outback South Australia

Wurare da hukunce -hukunce 

 Tsohuwar gari da bishopric Oca a Asiya Ƙarama (Asiya ta yanzu ta Turkiyya), yanzu mai kallon ɗabi'ar Katolika ta Latin
 Tsohon Oca na Mutanen Espanya, Villafranca Montes de Oca na zamani, shima yana ganin bishop na ƙarni na farko (Auca), yanzu babban ɗabi'ar Katolika na Latin
 Oca (kogi), harajin Ebro, Spain, wanda ke da tushe a comarca na Montes de Oca
 Côte d'Azur Observatory, sunan Faransa: Observatoire de la Côte d'Azur
 Cerro Armazones Observatory
 Filin jirgin saman Orange County, filayen jirgin sama da yawa a Amurka
 Yankin Kasuwancin Tekun Oregon
 Iruña de Oca, gundumar Spain

Kasuwanci da al'umma 

 Associationungiyar Cricket Odisha, ƙungiyar cricket ta jihar BCCI
 Open Content Alliance, gungun ƙungiyoyi da ke ba da gudummawa ga rumbun adana littattafan da aka sanya na dijital
 Mafi kyawun yanki na waje, yankin yanki wanda ke raba hannun jari ɗaya cikin inganci
 Oregon Citizens Alliance, ƙungiyar masu fafutukar siyasa ta Kirista mai ra'ayin mazan jiya
 Ƙungiyar Abokan Ciniki, kariyar mabukaci da ƙungiyar ba da shawara kan aikin gona
 Organization of Chinese Americans, national Asian Pacific American social and civil society
 Oxford Conservative Association, ƙungiyar siyasa ta ɗalibai a Jami'ar Oxford

Addini 

 Cocin Orthodox a Amurka, Ikklesiyar Orthodox ta Gabas a Arewacin Amurka
 Nazarin Ƙarfin Oxford, wanda kuma aka sani da Tattaunawar Halin Amurka, gwajin mutumci da aka yi amfani da shi a Scientology
 Oca (bishopric), wanda yanzu shine babban ɗariƙar Katolika a Asiya Ƙarama

Fasaha 

 Ƙungiyar Al'umma ta Odoo, ƙungiya ce da ke tallafawa al'ummar Odoo (tsohon OpenERP)
 Buɗe Ginin Gudanarwa, tsarin sarrafa cibiyar sadarwa don na'urorin sauti da bidiyo (AES70)
 Abubuwan Maɗaukaki Mai Kyau, wakilan haɗin gwiwa waɗanda aka yi amfani da su don na'urori masu haskakawa kamar OLED da LEC; duba Liquid optically m m
 Abokin Karatun Oracle, matakin Shirin Takaddun Shaidar Oracle

Magani 

 OCA1, kwayar halittar da ke da alaƙa da albinism
 Albinism na oculocutaneous, wani nau'in albinism wanda ya shafi idanu da fata

Sauran amfani 

 Oca (tsari), wani nau'in mazaunin 'yan asalin Brazil
 Oxalis tuberosa, tuber ɗin Kudancin Amurka da aka sani da oca a cikin Mutanen Espanya
 Oakland Charter Academy, makarantar memba na Makarantun Jama'a na Amethod
 M iska mai iska, lokacin soji
 Old Croton Aqueduct, musamman lokacin da ake magana akan hanyar tafiya
 Open College of Arts
 Bude axiom mai launi a lissafi
 Operation Crossroads Africa, kungiyar sa kai
 Wakilin sharewa na gani, abu da ake amfani da shi a cikin microscopy don yin samfuran bayyane
 Masana ilmin taurari na Orange County, kulob ne mai son nazarin taurari da ke Orange County, California

Duba kuma 

 Oka (disambiguation)