Legislation of Tonga
Provides unofficial versions of consolidated legislation in force as at 31st December 2005.  2006 legislation is also being added.  The legislation can be browsed alphabetically and each Act entry lists regulations and other subordinate legislation made under the principal act as well as amendments.

Pacific Islands Legal Information Institute
The Tonga database includes civil, criminal and land judgments for the Supreme Court and Court of Appeal and legislation in chapter order (1988 Edition), plus selected annual acts from 1978 onwards. Includes link to the Constitution of Tonga.