The Justice Party is a centre-left to left-wing political party in South Korea. It has been described as liberal and progressive. It was founded on 21 October 2012 when the former New Progressive Party faction, former People's Participation Party faction, and moderates in the Unified Progressive Party split from the Unified Progressive Party. The Justice Party now takes a more moderate stance than the United Progressive Party or the Democratic Labor Party in the past. The Justice Party temporarily changed its name to, "Green-Justice Party" (Korean: 녹색정의당) on 30 January 2024 in an electoral pact with the Green Party Korea for the 2024 South Korean legislative election. On 27 April 2024, the party reverted back to its original name.

Presidential elections were held in South Korea on 9 March 2022. Under the South Korean constitution, presidents are restricted to a single five-year term, meaning that incumbent president Moon Jae-in was ineligible to run for a second term. Opposition candidate Yoon Suk Yeol of the People Power Party won the election, defeating candidate Lee Jae-myung of the incumbent Democratic Party.