The White House has joined in the celebrations following the Supreme Court ruling.
The official residence of the President of the United States was lit up with the colours of the rainbow Pride flag last night.
President Barack Obama said: “All people should be treated equal regardless of who they love.
“This ruling will strengthen all of our communities, by offering to all loving same-sex couples the dignity of marriage across this great land.
“This ruling is a victory for America – this decision affirms what millions of Americans already believe in their hearts. When all Americans are treated as equal, we are all more free.”
Figures such as Bill Clinton and Neil Patrick Harris have also been celebrating.