Ignacio Plaza Jiménez (born 10 January 1994) is a Spanish handball player for MOL Tatabánya KC.

He made his debut in the EHF Champions League in the 2010/11 season, scoring 2 goals in 4 matches.

In the 2015/16 season, he moved to the German Bundesliga club Füchse Berlin, with which he signed a three-year contract.

In the 2017/18 season, he suffered a torn cruciate ligament and had to watch Füchse Berlin's EHF Cup win from the stands.

In the spring of 2024, it was announced that he would transfer to the number three Hungarian club, MOL Tatabánya KC.