The Aberdeen Act of 1845 was an Act of the Parliament of the United Kingdom (citation 8 & 9 Vict c. 122) passed during the reign Queen Victoria on August 9. The long title of the Act is "An Act to amend an Act, intituled An Act to carry into execution a Convention between His Majesty and the Emperor of Brazil, for the Regulation and final Abolition of the African Slave Trade."