Jack M. Ciattarelli was born on December 12, 1961, in Sommerville, New Jersey.  His nationality is American, though he has Italian ancestry. Ciattarelli is an entrepreneur and politician.

He is the Republican nominee who run for governor in the 2021 New Jersey gubernatorial election, which he won on June 8. He also contested for governor in 2017 but lost to Kim Guadagno, Lieutenant Governor of New Jersey.

Ciatterelli also represented the 16th legislative district by serving in the New Jersey General Assembly from 2011 to 2018. He currently contested against incumbent Democratic Governor Phil Murphy on November 2.

As a businessman, Ciatterelli owns Galen Publishing L.L.C., a medical publishing company. He used to work as a certified public accountant. He was also an adjunct professor at Seton Hall University for three years.

Ciatterelli has a wife named Melinda Castro. Not much is known about her. She is on Instagram as @mciattarelli. However her account has been set to private, unlike her significant other. The couple has been married since 1995, and they have four children.