Abbey has taken over the role from Michael Bublè's wife Luisana Lopilato, who has hung up her undies to focus being a mum to their son Noah.
Liverpudlian model Abbey will make her first mark on Ultimo in the new year, when the brand's Spring Summer 2014 campaign is unveiled.
Abbey, who is married to England footballer Peter Crouch, is thrilled to have landed the coveted role, especially as she was already a fan of Ultimo's bras and knickers!
She said: "It's really exciting to be part of such an established brand at such an exciting time.
"I absolutely love the Ultimo product – it's so wearable and feels amazing on the body!
"I can't wait until the Spring Summer campaign is revealed next year, and to work with Michelle [Mone] and her team."
Ultimo founder Michelle added: "It is very exciting times for Ultimo. We've made major improvements to our product and taken a more directional approach.
"Abbey's first Ultimo shoot will reflect this change in direction, further cementing Ultimo's position as one of the UK's best loved lingerie brands."
This weekend, Abbey sailed through to the final of Strictly Come Dancing, along with Sophie Ellis-Bextor, Susanna Reid and Natalie Gumende.
Ultimo is available from www.ultimo.co.uk and Debenhams
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