The singer has been campaigning alongside her husband Jay-Z for Obama's re-election all year, with the pair hosting a fundraiser that raised over $4m for the campaign in September.
Beyoncé has now posted an open letter to the president on her website declaring her ongoing support and admiration.
She writes: "Everyday we see your heart and character, inspiring all of us to give more of ourselves. You are the leader to take us from where we are to where we need to be.
"You are the reason my daughter and nephew will grow up knowing that they can truly be ANYTHING they want to be."
The 'Countdown' singer then signed off: "All my respect and adoration, Beyoncé."
Earlier in the year, Beyoncé had read a heartfelt letter to First Lady Michelle Obama on her website, and yesterday husband Jay-Z appeared alongside Bruce Springsteen and the president at a final campaign rally in the crucial swing state of Ohio.