After a campaign that saw him announcing controversial policy positions, including on climate change, global trade and immigration, Trump defied pre-election polling to prevent Democrat Hillary Clinton from becoming the first female President of the United States.
In his victory speech, he said he would serve all Americans and called for the country to unite, following the divisive campaign.
But how will his becoming the 45th US President affect America’s relationship with the rest of the world?
Here are five ways, identified by the BBC.
1. Free trade