Ignaz Karl Mercandin (d. 13 April 1799) became an Austrian general during the French Revolutionary Wars.

He was promoted Generalmajor in 1792 and commanded a cavalry brigade at Mainz in 1795.

Promoted to Feldmarschall-Leutnant, he served in the Rhine campaign of 1796 as a division commander.

In 1799, he led a division at Verona and Magnano.

Mortally wounded in the latter battle, he died a week later.