法兰克福国民议会（德语：Frankfurter Nationalversammlung）是在德意志1848年革命期间成立的国民议会，用以计划以民主之方式统一德国。议会在法兰克福召开，有831名众议员出席。

议会成员于1848年5月18日在法兰克福圣保罗教堂（Frankfurter Paulskirche）召开会议。受到1848年革命的影响，普鲁士国王腓特烈·威廉四世为势所迫，惟有答应革命党人的要求，承诺制定宪法与成立议会，以期商讨统一德国事宜，以自保权力。

The Frankfurt Parliament (German:Frankfurter Nationalversammlung, literally Frankfurt National Assembly) was the first freely elected parliament for all of Germany, elected on 1 May 1848 (see German federal election, 1848).

The session was held from 18 May 1848 to 31 May 1849, in the Paulskirche at Frankfurt am Main. Its existence was both part of and the result of the "March Revolution" in the states of the German Confederation.