Bầu cử thống đốc New Jersey năm 2005

The 2005 New Jersey gubernatorial election was a race to determine the governor of New Jersey. It was held on November 8, 2005. Democratic governor Richard Codey, who replaced Governor Jim McGreevey in 2004 after his resignation, did not run for election for a full term of office.

The primary election was held on June 7, 2005. U.S. senator Jon Corzine won the Democratic nomination without serious opposition. Former West Windsor Mayor Doug Forrester received the Republican nomination with a plurality of 36%. Corzine defeated Forrester in the general election. New Jersey is reliably Democratic at the federal level, but this was the first time since 1977 in which Democrats won more than one consecutive gubernatorial election in the state. This was the first time since 1965 that a Democrat won a gubernatorial race without Ocean County, and the first since 1961 that they did so without Monmouth County.

The 2005 general election also saw a public referendum question on the ballot for the voters to decide whether to create a position of lieutenant governor, alter the state's order of succession, and whether the state's first lieutenant governor would be chosen in the subsequent gubernatorial election held in 2009. The question passed by a tally of 836,134 votes (56.1%) to 655,333 (43.9%). To date, this is the most recent election that Salem County voted for the Democratic candidate in a gubernatorial race.