Maeda Toshiyoshi served as a bushō during the Azuchi-Momoyama and early Edo periods.  He was a retainer of the Maeda family and, in the Edo period, the Kaga domain.

In 1565, Toshiyoshi was born as the son of Maeda Yasukatsu, a retainer of the Maeda family.  His father, Yasukatsu, was the older brother of Maeda Toshiie, the lord of the Maeda.  Deeply trusted, he was appointed to serve as the chamberlain of Nanao Castle in the Kashima District of Noto Province.  Residing in Komaruyama Castle, he governed Noto.  In 1584, when Sassa Narimasa of Etchū Province invaded Noto, Toshiyoshi and Yasukatsu (father and son) captured Arayama Castle in the Kashima District from the Sassa army, contributing to victory at the Siege of Suemori Castle.  In the fifth month of 1594, upon the death of Yasukatsu, Toshiyoshi succeeded him, becoming the lord of Komaruyama Castle and the chamberlain of Nanao Castle.

Toshiyoshi died in 1610.  His family name and position were inherited by Maeda Tomoyoshi – the third son of Maeda Toshiie.