A trajectory is the path a moving object follows through space.

Types of trajectories include: Trajectory of a projectile Lofted trajectory, a particular type of non-minimum energy ballistic trajectory Trajectory (fluid mechanics), the motion of a point in a moving fluid In motion planning, the trajectory of a robotic motion Phase space trajectories of dynamical systems

Trajectory may also refer to: Trajectory (comics), a DC Comics character Trajectory (The Flash episode), an episode of the U.S. TV series The Flash that includes the character Trajectory (Arrowverse), a fictional character appearing in the Arrowverse television franchise Trajectory Hermeneutics, a liberal teaching of Christian Postmodernism Trajectory Inc., an American ebook platform Trajectory optimization, the process of minimizing or maximizing performance In finance, the end point from source spending (where the money goes) In cricket, trajectory is known as flight or loop In writing, trajectory is an informative discussion (or map) of the various avenues texts can travel as they both affect, and are affected by, the world.