How long can a gray wolf live in the wild?

In the wild, a gray wolf can live up to 13 years. However, most wolves die well before reaching this age.123

While wolves face various threats from diseases and parasites—such as rabies, distemper, and heartworm—humans are the leading cause of death for the species in most parts of the world. In regions where wolf populations are dense and prey is scarce, other significant causes of mortality include starvation and being killed by other wolves.123