The professional dancer confirmed on social media that he is now a dad with a sweet Instagram post.
The cute snap features two pairs of dancing shoes, one pink and blue, with the colours confirming that his girlfriend has given birth to a boy and a girl.
Clearly overjoyed with the news, Anton captioned the photo: 'Oh my! The little dancing feet have arrived.
'Mum and twins are perfect and dad is ridiculously excited!', he told his 19k followers on Instagram.
Anton revealed he was going to become a father in November, with a similar announcement on Twitter, sharing a picture of a two white pairs of dancing shoes.
'Hannah and I are delighted to announce that we are expecting twins in the spring. We are over the moon!', he wrote back at the time.
Hannah and I are delighted to announce that we are expecting twins in the spring. We are over the moon! pic.twitter.com/t2K8W8ezKy— Anton Du Beke (@TheAntonDuBeke) November 5, 2016
Before Christmas, the 50-year-old revealed the gender of his babies during an appearance on Good Morning Britain.
'We had our baby scan – we found out they are definitely babies. We’re going to have one of each,' he explained.
Fans rushed to congratulate the couple, sending their well-wishes to the little family.
'Delighted at your wonderful news..happy everyone is well..😇😇❤️', one fan wrote, while another commented 'Congratulations really pleased for you and your lovely Hannah... perfect dancing partners.'
Anton started dating Hannah, head of a telecommunications firm in 2010, three years after splitting up with radio and TV broadcaster Caroline Feraday, whom he dated between 2006 and 2007.
Talking about Hannah, Anton has previously said she's 'just perfect'.
'I love her above all things. She's just perfect. Will we marry? Maybe next year. We're very happy', the dancer said.
Anton has been on Strictly since 2004 and is the show's oldest professional dancer, having partnered up with the likes of Ann Widdecombe, Judy Murray, Esther Rantzen and Nancy Dell’Olio and model Jerry Hall.
Congratulations to this lovely couple!