Abstract: A dental chair armrest having a stationary bar assembly, a movable bar assembly, and a supporting assembly. The stationary bar assembly is removably mounted onto a dental chair. The stationary bar assembly has a stationary bar, a plate, and a stationary bar nut. The stationary bar has first and second studs, and a threaded stud. The movable bar assembly has a bar and a movable bar nut. The bar has a hole and a bar stud that perpendicularly extends from the bar. The supporting assembly has an adjustable bar, a platform, a swivel, and a support pad. The adjustable bar comprises at least two holes. The platform is connected to the adjustable bar with a swivel, and the support pad is mounted onto the platform. The stationary bar assembly is connected to the movable bar assembly, and the movable bar assembly is connected to the supporting assembly.