Wheelchairs are mobility devices designed to assist individuals who have difficulty walking due to various health conditions. They come in manual and powered forms to cater to different user needs.

A wheelchair is a chair with wheels, used when walking is difficult or impossible due to illness, injury, or disability. Wheelchairs come in a wide variety of formats to meet the specific needs of their users. They may include specialized seating adaptions, individualized controls, and may be specific to particular activities, as seen with sports wheelchairs and beach wheelchairs. The most recognized distinction is between powered wheelchairs ('powerchairs'), where propulsion is provided by batteries and electric motors, and manually propelled wheelchairs, where the user propels the chair by pushing the wheels by hand. Wheelchairs are used by people for whom walking is difficult or impossible due to illness (physiological or physical), injury, or disability. People who have difficulty sitting and walking often make use of a wheelbench.