Bangladesh recorded 2,333 dengue cases in the 24 hours till Sunday morning, the highest single-day tally so far this year.
During the same period, three people died of the mosquito-borne disease, according to the Directorate General of Health Services (DGHS).
With the latest fatalities, the country's dengue death toll has risen to 461 this year.
The DGHS reported two deaths in Dhaka and one in Chattogram division.
Earlier, on October 25, Bangladesh recorded its previous highest daily dengue cases of 2,249.
Since January 1, a total of 149,913 dengue patients have been admitted to hospitals across the country. Of them, 143,389 have recovered.
Currently, 6,063 patients are undergoing treatment at different hospitals across the country.