Officials said four of the tickets are for failure to use the government’s LeaveHomeSafe app and the remaining three are for breaches of rules on mask wearing.
The fixed penalty tickets have been paid, they added.
The birthday party at a restaurant in Wan Chai on January 3 was attended by over 200 people, including a number of senior government officials and legislators, just as the highly infectious Omicron variant of Covid was starting to spread in Hong Kong.
The party came to light after one guest tested positive for the virus.
Former home affairs secretary Caspar Tsui later stepped down over the saga, saying he had behaved in an inappropriate manner.
The FEHD also said it has issued a court summons to the restaurant for allegedly failing to display the correct layout plan and the suitable notice of air change per hour on-site.