Yamada Arinobu (山田 有信, 1544 – June 15, 1609) was a retainer of the Shimazu clan during the Edo period.
On 1578, Ōtomo Yoshishige attacked the Shimazu clan and Arinobu gathered 500 troops to hold ground at Takajo Castle.
In the Battle of Mimigawa that followed, the Shimazu army defeated the Otomo who retreated under heavy losses.
In 1587, when Toyotomi Hideyoshi launched the invasion of Kyūshū at Shimazu clan territory, Arinobu again gathered a handful of troops to take a defensive stand after the main body of the army led by Shimazu Yoshihisa had lost.
Yamada died in 1609 and it is said that Yoshihisa prayed in front of his coffin, thanking him for his long service.