Prince Harry reveals his personal secret

Britain's Prince Harry speaking at 100 Women in Hedge Funds Philanthropic Initiatives of which he is patron. The Prince has admitted he's a nervous public speaker. Photo / AP

Prince Harry has confessed a personal secret as part of a campaign to mark World AIDS Day - he gets "incredibly nervous" before giving a speech or entering a room full of people.

The 30-year-old may be known for his outgoing and irreverent personality but, like many in the public eye, he suffers from a bout of nerves just before addressing an audience.

He said he is so on edge before walking into a room to meet people that he would describe himself as "anxious".

Harry spoke about his anxieties in a video message in support of his charity Sentebale's #FeelNoShame campaign for World AIDS Day.

The campaign aims to raise awareness of how eradicating shame and stigma can save the lives of HIV sufferers, empowering them to seek medical support and education about their condition, and preventing the virus from spreading.

In his video message, the Prince said: "First of all I would like to thank everybody for getting involved in the #FeelNoShame campaign, a part of Sentebale.

"On today, World AIDS Day, my secret is, believe it or not, I get incredibly nervous before public speaking, no matter how big the crowd or the audience.

"And despite the fact that I laugh and joke all the time, I get incredibly nervous, if not anxious actually, before going into rooms full of people when I'm wearing a suit."

- AAP