The Hollywood star apparently took her son Maddox to the royal palace.
Angelina Jolie has enjoyed a private tour of Buckingham Palace.
No members of the Royal Family were present for the visit, which took place on Tuesday evening.
Her son Maddox also attended, according to the Daily Mail.
The Hollywood star’s visit came after she made her first appearance as guest lecturer at the London School of Economics.
Angelina spoke to postgraduate students taking the course Women, Peace and Security.
Before she gave her inaugural lecture, the UN special envoy told the Evening Standard: “I’m a little nervous, feeling butterflies.
“I hope I do well. This is very important to me.”