There is no definitive answer to this question as it will depend on a number of factors, such as the climate, the size of the rabbit, and how long it has been dead. In general, however, a dead rabbit will start to smell within a few days. This is due to the fact that when a rabbit dies, its body starts to decompose, and as this process progresses, the smell will become stronger.

What causes a dead rabbit to smell?
When a rabbit dies, its body starts to decompose. This process causes the smell of rotting flesh, which can be overwhelming.
How long does it take for a dead rabbit to smell?
It depends on a number of factors, such as the climate and the size of the rabbit. In general, however, a dead rabbit will start to smell within a few days.
What should I do if I have a dead rabbit in my home?
It is important to dispose of the rabbit as soon as possible. You may choose to bury it outside, but please be careful not to disturb any wildlife in the area.