The Constitution Act or Constitutional Act is the name of several acts, notably:

• The Act forming the original part of the Constitution of Australia
• Several Acts forming part of the Constitution of Canada, such as:
  • The Constitution Act, 1867 (formerly called the British North America Act, 1867)
  • The Constitution Act, 1982
  • The Constitution Act (British Columbia)
• Constitutional Act of 1791, which divided Quebec into Upper Canada and Lower Canada for the benefit of newly arrived English-speakers
• Constitutional act of the Czech Republic, the name of a kind of law in the Czech Republic which alters the Constitution
• Various pieces of Danish legislation, including:
  • Constitutional Act of the Kingdom of Denmark (1849), which provided the modern constitution for Denmark, ending the previous absolute monarchy
  • The Danish Act of Succession, known formally as, The Constitutional Act of Denmark of June 5, 1953
• Constitutional Act of 1934, which realigned representation in the Icelandic parliament such that it would be more harmonious with the popular vote
• Some laws in or formerly in the Constitution of New Zealand:
  • New Zealand Constitution Act 1846
  • New Zealand Constitution Act 1852
  • Constitution Act 1986
• Niue Constitution Act

• Constitution
• Constitutional law (disambiguation)

This disambiguation page lists articles associated with the title Constitution Act.
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