Trajectory (disambiguation)

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 (DC 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
 * Trajectories (magazine), a 1980s tabloid magazine
 * 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.