To provide a yarn feed roller for a yarn twister capable of feeding yarn to a downstream side while appropriately loosening tension of yarn, and capable of also preventing looseness and wind-around of yarn.

Twisted yarn Y is wound around the yarn feed roller 11 from its axial base end side toward its tip end side. The base end side part 11a of the yarn feed roller 11 is mirror-finished, and the tip end side part thereof is satin-finished. That is, the surface roughness of the tip end side part 11b of the yarn feed roller 11 is rougher than that of the base end side part 11a thereof.