Nitta Yoshisuke (新田義助) also known as Wakiya Yoshisuke (脇屋義助) , (1305–1340) was the brother of Nitta Yoshisada in the early fourteenth century, and supported the Southern Court of Emperor Go-Daigo in the Nanboku-chō period, capturing Kamakura with his brother from the Hōjō clan in 1333.

Both Nitta brothers survived the Siege of Kanegasaki (1337) by fleeing to Somayama.^[1]

After his brother died, he fled to various parts of Japan including Mino, Owari, and Yoshino.

In 1339, under orders from the new Emperor Go-Murakami, he captured Shiba Takatsune's fortress at Kuromaru. He died while on campaign in Iyo.^{[1]: 68, 72–73}