Fidesz–KDNP Party Alliance (Hungarian: Fidesz–KDNP pártszövetség), formerly also known as the Alliance of Hungarian Solidarity (Hungarian: Magyar Szolidaritás Szövetsége), is a right-wing national conservative political alliance of two political parties in Hungary, the Fidesz – Hungarian Civic Alliance (Fidesz) and the Christian Democratic People's Party (KDNP). The two parties jointly contested every national election since the 2006 parliamentary election. The Fidesz–KDNP party alliance has governed Hungary since 2010, altogether obtaining a supermajority in each of the 2010, 2014, 2018, and 2022 national elections.

The two parties formed their permanent electoral coalition on 10 December 2005.^[4] After the 2006 election, Fidesz and KDNP separately formed parliamentary groups, but they established a caucus alliance in the Hungarian parliament.^[5]

Technically Fidesz and KDNP are a coalition, but many consider KDNP to actually be a satellite party of Fidesz,^[6][7] since it has been unable to get into the Parliament on its own since 1994 when it barely passed the election threshold of 5% of votes. Without Fidesz, its support cannot be measured,^[8][9][10] and even a leading Fidesz politician, János Lázár stated in 2011 that Fidesz does not consider the government to be a coalition government.^[11]

On March 3, 2021, the Fidesz left the European People's Party Parliamentary Group, while KDNP is still a member of it.^{[citation needed]}

• CDU/CSU