List of national legal systems
Common law is currently in practice in Ireland, most of the United Kingdom (England and Wales and Northern Ireland), Australia, New Zealand, Bangladesh, India (excluding Goa), Pakistan, South Africa, Canada (excluding Quebec), Hong Kong, the United States (on a state level excluding Louisiana), and many other places. In addition to these countries, several others have adapted the common law system into a mixed system. For example, Nigeria operates largely on a common law system, but incorporates religious law.
Union Internationale des Avocats
Today, the UIA is an association open to all lawyers from around the world, general or specialized, and brings together several thousand members and 200 bar associations, federations, and associations from 110 countries. 
Multilingual and multicultural, the UIA is the only major international lawyers organisation to have eight official languages (French, English, Spanish, Italian, German, Portuguese, Arabic, and Chinese) and to work in three working languages: French, English, and Spanish.
Moreover, the UIA has built more than 47 commissions and working groups composed of lawyers from jurisdictions spanning the globe. These lawyers practice in law firms, businesses, or public institutions. Each commission monitors the evolution occurring in a particular legal field (or practice) and determines how these changes will affect or be affected by other legal fields. All UIA commissions collaborate to keep each other informed of their respective developments and findings.
The UIA's commissions and working groups are divided into two principal fields: "Business Law" and "General Practice and Human Rights"