Jack Ciattarelli

Jack Ciattarelli
Ciattarelli in 2021
Member of the New Jersey General Assembly
from the 16th district
In office
December 5, 2011 – January 9, 2018
Preceded byPeter J. Biondi
Succeeded byRoy Freiman
Member of the Somerset County Board of Chosen Freeholders
In office
January 1, 2007 – November 23, 2011
Preceded byKen Scherer
Succeeded byMark Caliguire
Personal details
BornGiacchino Michael Ciattarelli
(1961-12-12) December 12, 1961
PartyRepublican
Spouse
Melinda Castro
(m. 1995; div. 2025)
Children4
Alma materSeton Hall University (BS, MBA)
WebsiteCampaign website

Giacchino Michael "Jack" Ciattarelli (/ˌɪtəˈrɛli/ CHIT-ə-REL-ee; born December 12, 1961) is an American businessman and politician. A member of the Republican Party, he represented the 16th legislative district in the New Jersey General Assembly from 2011 to 2018. He was also the Republican nominee for governor of New Jersey in 2021 and 2025, narrowly losing the 2021 election to incumbent Phil Murphy and the 2025 election by a wide margin to U.S. representative Mikie Sherrill, despite polls showing a tight race. He also ran in 2017, but lost the primary to Kim Guadagno, who lost the general election to Murphy.