Roller may refer to:

Birds

*Roller, a bird of the family

Coraciidae Coraciidae is a family of Old World birds, which is known as rollers because of the aerial acrobatics some of these birds perform during courtship or territorial flights. Rollers resemble crows in size and build, and share the colourful appeara ...

* Roller (pigeon), a domesticated breed or variety of pigeon

Devices

Roller (agricultural tool) The roller is an agricultural tool used for flattening land or breaking up large clumps of soil, especially after ploughing or disc harrowing. Typically, rollers are pulled by tractors or, prior to mechanisation, a team of animals such as horses ...

, a non-powered tool for flattening ground *

Road roller A road roller (sometimes called a roller-compactor, or just roller) is a compactor-type engineering vehicle used to compact soil, gravel, concrete, or asphalt in the construction of roads and foundations. Similar rollers are used also at la ...

, a vehicle for compacting ** Steamroller, a form of road roller * Roller, an element of a rolling-element bearing * Roller, used in rolling (metalworking) * Roller, in a

roller mill Roller mills are mills that use cylindrical rollers, either in opposing pairs or against flat plates, to crush or grind various materials, such as grain, ore, gravel, plastic, and others. Roller grain mills are an alternative to traditional ...

, to crush or grind various materials *

Rolling pin Rolling is a type of motion that combines rotation (commonly, of an axially symmetric object) and translation of that object with respect to a surface (either one or the other moves), such that, if ideal conditions exist, the two are in contact ...

, a compacting device used for preparing dough for cooking *

Roller (BEAM) BEAM robotics (from biology, electronics, aesthetics and mechanics) is a style of robotics that primarily uses simple analogue circuits, such as comparators, instead of a microprocessor i