The SL Hitoyoshi (SL 人吉) was a named steam hauled excursion train operated by the Kyushu Railway Company (JR Kyushu) on the Kagoshima Main Line and the Hisatsu Line between April 2009 and March 2024.

Since the damage of the 2020 Kyushu floods to the Hisatsu Line, the SL Hitoyoshi temporarily ran between Kumamoto and Tosu Station.

[2] The SL Hitoyoshi consists of an 8620 (8620形) Class steam locomotive and three specially modified OHa 50 series (オハ50系) carriages.

The train livery is painted chocolate with grey roofs and SL Hitoyoshi motifs and lettering in gold.

In 2020, JR Kyushu repainted the SL Hitoyoshi black to replicate the Mugen Train from the anime film Demon Slayer: Kimetsu no Yaiba the Movie: Mugen Train for a limited run from Kumamoto Station to Hakata Station from 1 to 26 November.