This paper deals with a new generalization of the exponential, Gompertz, and generalized
exponential distributions. This distribution is called the generalized Gompertz distribution
(GGD). The main advantage of this new distribution is that it has increasing or constant or
decreasing or bathtub curve failure rate depending upon the shape parameter. This property
makes GGD is very useful in survival analysis. Some statistical properties such as
moments, mode, and quantiles are derived. The failure rate function is also derived. The
maximum likelihood estimators of the parameters are derived using a simulations study.
Real data set is used to determine whether the GGD is better than other well-known distributions
in modeling lifetime data or not