Tach (disambiguation)

A tach or tachometer is a measurement device for RPMs.

Tach may also refer to:
 * Triazacyclohexane (TACH), a class of chemicals
 * HD Tach (software), a graphing program

People with the surname

 * Laura Tach, American academic

People with the given name

 * Tach Sharakat, Kalasha of Pakistan, one of the first literate Kalasha