Martin Grant Holzberger, AM, CSC (born 1 September 1968) is an officer of the Royal Australian Navy (RAN).

He joined the RAN as a submariner in 1987 and rose through the ranks to become the 7th Warrant Officer of the Navy in 2012.

[3] In 2004 Holzberger was selected for an exchanged with the United States Navy Pacific Fleet.

[5] Holzberger was appointed Command Warrant Officer – Fleet Command in March 2010 and in 2012 he became the seventh Warrant Officer of the Navy (WO-N).

From February 2021 to December 2022, he was the executive officer of the training establishment HMAS Cerberus.