| Abbreviation |
Title |
| O |
Ontario Reports (Can) 1882-1900; 1931-1973; 1974-1991; 1991- |
| South African Law Reports, Orange Free State Provincial Division 1910-1946 |
| O Bridg |
Carter's Reports tempore Bridgman, Common Pleas 1664-1676 |
| Orlando Bridgman's Common Pleas Reports 1660-1667 |
| OAG |
Opinions of the Attorneys General of the United States (USA) 1791-1960 |
| OAR |
Ontario Appeal Reports 1876-1900 |
| OB & F |
Ollivier, Bell and Fitzgerald's Court of Appeal Reports (NZ) 1878-1880 |
| Ollivier, Bell and Fitzgerald's Supreme Court Reports (NZ) 1878-1880 |
| Obiter |
Obiter (Journal of the University of Queensland Law Society |
| Obiter (University of Canterbury Law Students Society) |
| OBSP |
Old Bailey Session Papers 1715-1834 |
| Occ Pen |
Occupational Pensions |
| Ocean & Coastal LJ |
Ocean and Coastal Law Journal |
| Ocean Dev & Int'l L |
Ocean Development and International Law |
| OCN |
Compendium of Case Notes of the Ombudsman (NZ) |
| Odeneal |
Odeneal's Reports (Oregon USA) |
| ODIL |
Ocean Development and International Law |
| OFC |
High Court Reports of Orange Free State (S Afr) 1879-1883 |
| Officer |
Officer's Reports (Minnesota USA) (1-9 Minn) |
| OFLR |
Offshore Financial Law Reports |
| OFS |
Orange Free State Reports, High Court, (S Afr) 1879-1883 |
| OFSSA |
Orange Free State, South Africa |
| Ogden |
Ogden's Louisiana Annual Reports (Louisiana USA) (12-15 La Ann) |
| OGLTR |
Oil & Gas Law and Taxation Review |
| Oh St |
Ohio State Reports (Ohio USA) 1852- |
| Ohio |
Ohio (USA) |
| Ohio Reports (USA) 1821-1851 |
| Ohio NU L Rev |
Ohio Northern University Law Review |
| Ohio SLJ |
Ohio State Law Journal |
| Ohio St J on Disp Resol |
Ohio State Journal on Dispute Resolution |
| Ohio St LJ |
Ohio State Law Journal |
| Ohio St |
Ohio State Reports (Ohio USA) 1852- |
| OHLJ |
Osgoode Hall Law Journal |
| OHR |
Occupational Health Review |
| OHS |
Occupational Health and Safety |
| HOSE |
Occupational Health and Safety Authority (Victoria) |
| OHSN |
Occupational Health and Safety NSW |
| OJ |
Official Journal of the European Communities |
| OJC |
Official Journal of the European Union: C series (Communications) |
| OJ Eur Comm |
Official Journal of the Eureopan Communities |
| OJL |
Official Journal of the European Union: L series (Legislation) |
| OJLS |
Oxford Journal of Legal Studies |
| Okla |
Oklahoma (USA) |
| Oklahoma Reports (USA) 1890-1953 |
| Okla City U L Rev |
Oklahoma City University Law Review |
| Okla Crim |
Oklahoma Criminal Reports (Oklahoma USA) 1908-1953 |
| Okla LR |
Oklahoma Law Review |
| OLAA |
Office of Legal Aid Administration |
| OLAFS |
Office of Legal Aid and Family Services |
| Olc Adm |
Olcott's US District Court, Admiralty Reports (USA) 1843-1847 (District of New York) |
| Old |
Oldright's Nova Scotia Reports (Can) 1860-1867 |
| OLR |
Ontario Law Reports (Can) 1901-1930 |
| Oregon Law Review |
| Otago Law Review |
| O'M & H |
O'Malley and Hardcastle's Election Cases 1869-1929 |
| Ont |
Ontario (Can) |
| Ont App |
Ontario Appeal Reports (Can) 1876-1900 |
| Ont Dig |
Digest of Ontario Case Law (Can) 1823-1900 |
| Ont LR |
Ontario Law Reports (Can) 1901-1931 |
| Ont LRC |
Ontario Law Reform Commission |
| Ont Pr Rep |
Ontario Practice Reports 1850-1900 |
| OPC |
Office of the Parliamentary Counsel |
| OPD |
South African Law Reports, Orange Free State Provincial Division, 1910-1946 |
| OPLR |
Occupational Pensions Law Reports |
| OR |
Official Reports of the South African Republic 1894-1899 |
| Ontario Reports (Can) 1882-1900, 1931-1973 |
| OR 2d |
Ontario Reports, Second Series (Can) 1974-1991 |
| OR 3d |
Ontario Reports, Third Series (Can) 1991- |
| Or LR |
Oregon Law Review |
| Oracle |
Oracle (Monash University Law Society) |
| ORC |
Reports of the High Court of the Orange River Colony (S Afr) 1903-1910 |
| Ord |
Ordinance |
| Ore |
Oregon (USA) |
| Ore |
Oregon Reports (Oregon USA) 1853- |
| Orl TR |
Orleans Term Reports (1, 2 Martin, Old and New Series) (Louisiana USA) 1809-1823; 1823-1830 |
| OSC |
Occupational Superannuation Commissioner |
| Osgoode Hall LJ |
Osgoode Hall Law Journal |
| OSJDR |
Ohio State Journal on Dispute Resolution |
| OSR |
Office of State Revenue in New South Wales |
| Oss Bull |
Office for the Supervision of Solicitors Bulletin |
| Ot LR |
Otago Law Review |
| OTPR |
Offshore Tax Planning Review |
| OTS |
Office of Treaty Settlements (NZ) |
| Ott LR |
Ottawa Law Review |
| Ottawa LR |
Ottawa Law Review |
| OUCLJ |
Oxford University Commonwealth Law Journal |
| Out |
Outerbridge's Reports (Pennsylvania USA) (97, 98 Pa St) |
| Overt |
Overton's Reports (Tennessee USA) 1791-1816 (1-2 Tenn) |
| Owen |
Owen's King's Bench and Common Pleas Reports 1556-1615 |
| OWN |
Ontario Weekly Notes 1909-1962 |
| OWR |
Ontario Weekly Reporter 1902-1914 |
| Oxford J Legal Stud |
Oxford Journal of Legal Studies |
