Ikeda Motosuke (池田 元助; 1559 – May 18, 1584) was a military commander in the Azuchi-Momoyama period.
He was the frist son of Ikeda Tsuneoki. His young brother was Ikeda Terumasa .
He served Oda Nobunaga in his early years.
In 1579, since he was active in beating Araki Murashige with his brother, Terumasa, Nobunaga praised them for that.
In 1582, he served Hashiba Hideyoshi after Nobunaga died at the Incident at Honnoji.
In 1584, he led the force to beat up Mikawa Province at the Battle of Nagakute|Battle of Komaki and Nagakute.
However, he was kicked back by the Tokugawa Ieyasu's force, and died in the battle.