Robert John "Bob" Andrzejczak (born May 1, 1986) is an American Democratic Party politician who represented the 1st Legislative District in the New Jersey State Senate from January 15, 2019, when he was appointed to fill the vacancy created by the resignation of Jeff Van Drew, until December 5, 2019.

Andrzejczak previously served in the New Jersey General Assembly from March 21, 2013, to January 14, 2019, when he was appointed to fill the vacancy created by the resignation of Matthew W. Milam.

[3] Andrzejczak had served in the Iraq War as a sergeant in the Army's 25th Infantry Division until his discharge following an injury from a grenade explosion which led to the amputation of his left leg in 2009.

As a result, he was awarded the Purple Heart and Bronze Star; his recovery was featured on a 2009 episode of The Oprah Winfrey Show.

[8] On January 6, 2019, Van Drew formally nominated Bob Andrzejczak for his replacement, which the Democratic Committees of the 1st Legislative District approved unanimously.