Estimating the global rabbit population is difficult, but rough figures give us an idea:
Domesticated rabbits: Around 709 million globally as of 2015.
Wild rabbits: Vary by region, with about 36 million in the UK in 2022 and varying densities in Europe (0.5 to 10 per square kilometer).
Considering both domesticated and wild populations, the global rabbit population could be in the billions, though exact numbers are hard to pinpoint.