Ys III: Wanderers from Ys (イースIII – ワンダラーズフロムイース Īsu Surī – Wandarāzu Furomu Īsu^?) is an action role-playing game developed by Nihon Falcom Corporation. It is the third game in the Ys series.

Ys III was initially released for the NEC PC-8801 and NEC PC-9801 in 1989, and versions for the MSX2 and Sharp X68000 soon followed. In 1991, a number of console ports were produced: versions for the TurboGrafx-CD, Famicom, Super NES, and Sega Genesis. A port for the PlayStation 2 was released by Taito Corporation in 2005.

The TurboGrafx-CD, Super NES, and Genesis ports, as well as the PSP and PC remakes, Ys: The Oath in Felghana, have received official English-translated releases. In addition, the Famicom and MSX2 ports have been fan-translated.