Hermann Gassner Jr (born 29 November 1988 in Bad Reichenhall) is a German rally driver, currently competing in the Super 2000 World Rally Championship (SWRC).

His father Hermann Gassner Sr is also a rally driver.

Gassner won the Suzuki Rallye Cup in Germany in 2007, finishing seventh overall in the German Rally Championship and winning Division 4.

In 2008 he finished fourth in the German championship in a Mitsubishi Lancer Evo IX.

For 2011 Gassner joined the Red Bull Škoda team in the SWRC, finishing third in the category in Jordan, fifth in Sardinia and fourth in Greece.