'Act of Union' may be an act that refers to:
In the 'United Kingdom':
★
Laws in Wales Acts 1535–1542, passed by the Parliament of England, annexing Wales to the Kingdom of England are sometimes known as the "Acts of Union".
★
Acts of Union 1707, passed by both the Parliament of England and the Parliament of Scotland to form the Kingdom of Great Britain.
★
Act of Union 1800, passed by both the Parliament of Great Britain and the Parliament of Ireland to form the United Kingdom of Great Britain and Ireland.
★
Act of Union 1840, passed by the Parliament of the United Kingdom, joining
Upper Canada and
Lower Canada (to form the
Province of Canada).
In 'Scandinavia':
★
Act of Union 1814 forming a personal union between Sweden and Norway.
Other meanings
★ An agreement between the Presbyterian and Congregationalist churches, within the United States.
★ The term "act of union" is also used as a euphemism for
sexual intercourse.