Oda Katsunaga (織田 勝長, born 1569, died June 21, 1582) was a Japanese samurai of the Sengoku period through early Azuchi-Momoyama Period, who was the fifth son of Oda Nobunaga.
At a very young age, Katsunaga, then known as "Gobomaru", was given in adoption to Toyama Kagetou and his wife, Lady Otsuya, at Iwamura Castle.
In 1581, Takeda Katsuyori released Gobomaru (Katsunaga) to the Oda clan, who returned him to Iwamura Castle, which had been re-taken during his absence.
Following the attack on Honno-ji and the death of Nobunaga, Akechi Mitsuhide attacked Nijō Castle, where Nobunaga's son Nobutada was staying.
During the fight, Katsunaga was killed and Nobutada committed seppuku.