The Progressive Citizens' Party in Liechtenstein (German: Fortschrittliche Bürgerpartei in Liechtenstein, FBP)^{[lower-alpha 2]} is a conservative^[4][5] political party in Liechtenstein. The FBP is one of the two major political parties in Liechtenstein, along with the liberal-conservative Patriotic Union. Founded in 1918 along with the now-defunct Christian-Social People's Party, it is the oldest extant party in Liechtenstein.^[10]

The party was established in 1918 by middle class citizens and members of the agricultural community as a response to the formation of the Christian-Social People's Party (VP).^[11] In addition to being linked to the commercial and rural environment, the party was also firmly anchored in the clergy. It won the majority of the elected the 1918 elections,^[12] but the VP formed a government following the November 1918 Liechtenstein putsch.^[13]

The VP won elections in 1922, January 1926 and April 1926, but the FBP won the 1928 elections, and became the party of government until 1938,^[13] with Josef Hoop serving as Prime Minister until 1945. In 1938 the FBP allowed the Patriotic Union (VU) to join it in a coalition government. The two parties governed in coalition until the 1997 elections,^[14] after which the Patriotic Union formed a government. The FBP won the 2001 elections and its leader Otmar Hasler became Prime Minister. Following the 2005 elections the coalition was renewed,^[14] with Hasler remaining Prime Minister. The VU's Klaus Tschütscher held the post between 2009 and 2013, after which FBP leader Adrian Hasler became Prime Minister.

In the 2017 state election, the FBP lost 4.8% of the vote and was awarded only nine of the 25 seats. However, it remained the party with the most votes in the state parliament, as the Patriotic Union only gained slightly and still had eight MPs.

In the 2021 state elections, Adrian Hasler and government councilor Mauro Pedrazzini (also a FBP member) decided not to run for government again after eight years. With Sabine Monauni, the FBP nominated a woman as Prime Minister candidate for the state elections for the first time. The party nominated Katrin Eggenberger and Manuel Frick as further candidates for the government.

The FBP achieved 35.9% of the votes in the 2021 state elections and thus ten state parliament seats. Mathematically, the FBP was elected by around 100 voters (0.6%) more. The discrepancy arose from the fact that the voters in the Oberland, with 15 votes per ballot paper, had a higher weight on the total party vote result than the voters in the Unterland with ten votes per person. Voter turnout was stable at 78.0%.

The FBP tends to be conservative on social/cultural issues. As for economic issues, it is economically liberal but also claims to follow a social market economy policy.^[15] The party states its policies are based on Christian values such as solidarity, respect and justice.^[15] It also advocates a dualistic form of government, claiming to support both the monarchy and the people as sovereigns.^[15]