Amzi Chapin (1768–19 February 1835) was an American cabinetmaker, singing-school teacher, shapenote proponent and composer.
In November 1831 Amzi Chapin wrote the original proposal and is listed along with eight other men founders of the Presbyterian congregation in Northfield Twp.
Chapin taught singing schools in Virginia and North Carolina, before moving to Kentucky and then Pennsylvania.
Lucius Chapin was also a singing teacher, and the two were apparently among the first to teach sacred music west of the Allegheny Mountains.
The well-known tune "Primrose" (47t in the Sacred Harp) is by Amzi Chapin, while Lucius contributed "Vernon" (95) and the Ninety-Third Psalm (31t).