Ellen DeGeneres said she was the 'luckiest person in the world' as she walked down the aisle with new wife Portia De Rossi.

The talk show host married her partner at an intimate ceremony at their Beverly Hills home after just under four years together.

'She's officially off the market. No one else gets her. And now she'll cook and clean for me,' DeGeneres revealed to U.S. People magazine.

Chat show host Ellen DeGeneres (L) and actress Portia de Rossi pose for photos during their wedding

Both brides wore designs by Zac Posen and after exchanging Neil Lane rings, the couple and their guests sat down to an all-vegan menu.

Meanwhile, De Rossi, 35, couldn't hide her delight at marrying DeGeneres, 50.

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'The love we felt from the people surrounding us, and the love we have for each other, made this the most beautiful and emotional day. And one that we'll never forget,' De Rossi said.

A publicist for DeGeneres confirmed the wedding took place but gave no further comment.

And while opponents were calling for a constitutional amendment to ban gay marriage in California, Hollywood was throwing its support behind the newlyweds.

'One of my favourite people of all time is Ms Ellen DeGeneres,' Katherine Heigl, star of Grey's Anatomy, said.

'So I wish all the best, all the happiness, all the joy that comes with that certificate ... just the joy of being able to stand up and say that.

'In front of everyone you love and care about in front of each other and to walk away legal is huge.'

People magazine hits news stands this week.