Doesn't look like anyone is tracking "pandemics" formally. WHO.int is tracking public health emergencies of international concern, which appear to include epidemics with pandemic potential as well as outbreaks with pandemic potential and extremely egregious likelihood of permanent harm. https://en.wikipedia.org/wiki/Public_Health_Emergency_of_Int...

But from what I could dig up, the last widely accepted pandemic declaration was the H1N1 2009.

The two current pandemics include HIV/AIDS and COVID-19.

There is a list of epidemics, but that list also includes localized or regional matters rather than just global-scale pandemics, and not all of them may amount to PHEICs.

I always hate linking to wikipedia, but it's the best such list I could find: https://en.wikipedia.org/wiki/List_of_epidemics