航空航天工程学（aerospace engineering）是航空工程学与航天工程学的总称，涉及航空飞行器与航天飞行器有关的工程领域。它包含固体力学、流体力学（特别是空气动力学）、航天动力学、天体力学、热力学、导航、航空电子、自动控制、电机工程学、机械工程、通信工程、材料科学和制造等领域。

Aerospace engineering is the primary field of engineering concerned with the development of aircraft and spacecraft. It is divided into two major and overlapping branches: aeronautical engineering and astronautical engineering.

Aeronautical engineering was the original term for the field, but as flight technology advanced to include craft operating in outer space, the broader term "aerospace engineering" has largely replaced it in common usage. Aerospace engineering, particularly the astronautics branch, is often incorrectly referred to as "rocket science".