Roller may mean: In biology:
- Roller, family of brightly coloured near passerine birds in the genera Coracias and Eurystomus
In industry:
- Roller (machine part), a cylindrical machine component or a component of a roller bearing
- Roller (agricultural tool), an agricultural or gardening implement for leveling ground
- Road roller (also called 'roller-compactor' or steam roller), a heavy machine used in construction of roads & foundations
- Roller-compactor (chemical industry), a machine used in pharmaceutical, chemical and food industries
- rolling mill, heavy machine with cylindrical rolls, used in a steel mill: see also hot rolling and cold rolling
As a personal surname:
- A. Clyde Roller, an American conductor and music educator
Other uses:
- Rollers can refer to a light bar specifically, and by extension, a Police Car
- Bicycle rollers, a type of bicycle trainer
- Roller (brush), a type of rotating paintbrush
- Rollerball pens (or roller pens), a type of writing instrument
- Rolls-Royce, nickname for the motor car brand
- the Rollers, rock band which evolved from the Bay City Rollers
- Apache Roller, a blog server written in Java
- in Hairdressing a Hair Roller or Hot Roller is used to curl hair.
- Paint roller
- a mobile scout buggy that is part of Optimus Prime
