What is the difference between a program manager and a project manager?

The difference between a program manager and a project manager is that a project manager oversees a particular project that is part of a larger program whereas program managers rarely manage an individual project. They may report to the program manager and help them assess whether or not different projects focus on the same end goals. On the other hand, a program manager’s role is to harmonize multiple projects and set a long-term strategy for organizational programs. Often, having experience as a project manager is a prerequisite for becoming a program manager.