It has been reported that Forest are weighing up a £1.5 million move for the defender.
Dean has been on the books of Brentford on a permanent contract since 2012 following a loan spell from Southampton.
Leeds United are also claimed to be interested in the former Southampton prospect.
According to The Mirror (Transfer blog, 11am, August 16, 2017 (click here to read more), the West Yorkshire outfit want to sign the centre-back this summer.
Dean is a good defender, and although Leeds look strong at the back at the moment, it would not be a bad idea for the Whites to snap up him this summer.
With the centre-back’s contract running out at the end of the season, Leeds would not have to pay a lot of transfer fee for the 26-year-old.