NHS England figures show 363 people had died in hospital at Gloucestershire Hospitals NHS Foundation Trust as of 5pm on Tuesday (December 29).
That was an increase of 18 compared to Monday, when there were 345.
It means there have been 26 deaths in the past week, the same number as the previous week.
The victims were among 2,295 deaths recorded across the South West.
Daily death counts are revised each day, with each case backdated to the actual date of death.
This means some of the deaths that were first recorded in the latest period may actually have taken place days earlier.
NHS England guidance states: “Confirmation of Covid-19 diagnosis, death notification and reporting in central figures can take up to several days and the hospitals providing the data are under significant operational pressure.”
Only deaths that occur in hospitals where the patient has tested positive for Covid-19 are recorded, with deaths in the community excluded, such as those in care homes.