Meating Steakhouse will move into Cappadocia Restaurant on Broadway.
The Courthouse Bar and Restaurant in Douglas is closing less than a year after it re-opened.
A post on social media revealed it will shut permanently this Saturday, 11 February.
Those in charge say the decision has been made with an 'extremely heavy heart' but they are 'no longer able to continue this journey'.
Meating Steakhouse, the on-site restaurant, will move into Cappadocia Restaurant on Broadway - any outstanding vouchers can be used in the new venue.