The comedian will play seven night at the city's SECC in October. The show dates are October 19, 20, 22, 23, 24, 26 and 27, which sold out.
And now he will also play October 31.
Connolly, who was given the all-clear from prostate cancer last year, has been hailed as the UK's most influential comedian of all time.
Tickets for the new date go on sale at 11am on Monday, July 21, priced £31.40-£33.60.
For more information visit Ticket Soup.