National Liberal Party was a name used by two groups of politicians, who had formerly been associated with the Liberal Party.

The National Liberal Party (Nationalliberale Partei) was a German political party which flourished between 1867 and 1918. It was formed by those Prussian liberals who put aside their differences with Bismarck over domestic policy due to their support for his highly successful foreign policy, which resulted in the unification of Germany. Its first chairman was Rudolf von Bennigsen.

The National Liberal Party (Partido Liberal Nacional) is a liberal party in Panama. At the last legislative elections, 2 May 2004, the party won 5.2 % of the popular vote and 3 out of 78 seats. The party is an observer at Liberal International.

The Partidul Naţional Liberal (National Liberal Party) is a liberal party in Romania, and the second largest party in parliament, being edged out only by the Social Democratic Party. However, it is the largest member of the governing Justice and Truth alliance, which enjoys a parliamentary majority due to an alliance between the Liberal Party, the Democratic Party, and the Democratic Union of Hungarians in Romania. Most of the current ministers in government are members of the National Liberal Party, including the current prime-minister, Călin Popescu-Tăriceanu, who is also the party leader.

The National Liberal Party (NLP, Arabic Hizbu-l-waTaniyyīni-l-aHrār) is a political party in Lebanon, established by President Camille Chamoun in 1958. It is now under the leadership of Dory Chamoun, his son.

National Liberal Party (Danish: Nationalliberale Parti), was a Danish political party or political movement from the 1830s until about 1880.