The term spindle may refer to:
In textiles and manufacturing:
- Spindle (textiles), a device to spin fibres into thread
- Spindle (tool), is the main rotating part of a machine tool, woodworking machine, etc.
- Segmented spindle, a spindle consisting of discrete elements that can be assembled and disassembled on the fly
In computing:
- Spindle, the axis or alternate name of a computer hard disk drive
- Spindle (disc packaging), a plastic case for bulk optical discs
In biology:
- Spindle apparatus, a cellular structure organizing and separating the chromosomes during cell division
- Muscle spindle, a specialized innervated muscle structure involved in the reflex action and in proprioception
- Spindle neurons are a specific class of neurons that participate in signal transmission in the nervous system
- Sleep spindle, an EEG waveform that occurs during sleep
- The genus Euonymus (also called spindles) are deciduous and evergreen shrubs and small trees
Other uses:
- Spindle (automobile), a part of a car's suspension system
- Spindle (furniture), an axially symmetric part of furniture or other woodwork
- Spindle (stationery), a device for holding paper documents
- Spindle (fire making), a straight wooden rod used in fire making
- Spindle torus, in mathematics, a self-intersecting torus
- Spindle (sculpture), a 40-foot sculpture made from cars in Berwyn, Illinois
- The Spindles, burial towers at Amrit, Syria