The Bachelor star - who got engaged to Ben Flajnik in this week's finale - is reportedly in talks with producers to join the show, a source told People.
A representative for ABC said: "We do not comment on casting rumours. You'll have to tune in Monday and see."
If Robertson were to join the show, she would only have a number of days to rehearse ahead of the 14th season's premiere on Monday, March 19.
Gladys Knight, Jack Wagner and Melissa Gilbert are among the cast for the new season of Dancing with the Stars.
Katherine Jenkins, Gavin DeGraw and tennis star Martina Navratilova are also among the lineup.
The Bachelor host Chris Harrison recently stated that he wasn't sure if Robertson and Flajnik will last as a couple, after reports that they had already briefly broken up.
> Barbara Walters: 'The Bachelor offends me and degrades women'
Dancing with the Stars returns Monday, March 19 on ABC.
Browse a gallery of this season's Dancing with the Stars competitors below: