Ethnic party is defined here as an organization authorized to compete in local or national elections; the majority of its leadership and membership identify themselves as belonging to a nondominant ethnic group, and its electoral platform includes demands and programs of an ethnic or cultural nature .
An ethnic party is a party that overtly represents itself as a champion of the cause of one particular ethnic category or set of categories to the exclusion of others, and that makes such a representation central to its strategy of mobilizing voters.
see also a comparison of various definitions in: Maxmilián Strmiska, A Study on Conceptualisation of (Ethno)regional Parties, Central European Political Studies Review (Brno), Part 2-3, Volume IV, spring-summer 2002
For instance, the parties competing for Jewish votes in interwar Poland and Lithuania had a range of different political views. There were Zionist parties (themselves divided into Revisionist, General or Labour parties), there was Agudat Israel (an Orthodox religious party), the Bund (Marxist) and the Folkspartei (liberal).
In some political systems, party politics are mostly based on ethnicity, as in Bosnia-Herzegovina and its federal regions, in Israel, in Surinam, in Sabah, in Sarawak or in Guyana. In Fiji, 46 seats out of 71 are elected from ethnically-closed Communal constituencies, as there was in the pre-Israel Palestine Jewish Assembly, the Asefat ha-Nivharim with separate 'curiae' for Ashkenaz, Sepharad and Oriental, and Yemeni Jews.
As a consequence, it would be somewhat irrelevant to classify some parties in these systems as 'ideological' (social-democrat, liberal, christian democratic etc.) and some others as 'purely autonomist', 'purely ethnic' or 'purely minority' parties.
The SFP is a full-fledged member of the Liberal International, as well as the Movement for Rights and Freedoms, representing the Turkish minority in Bulgaria, the South Tyrol People's Party (SVP, grouping German- and Ladin-speaking inhabitants of Italy's Province of Bolzano-Bozen) is a member of the Christian Democratic European People's Party, whereas the Social Democratic and Labour Party (SDLP), an Irish Catholic party in Northern Ireland is a member of the Socialist International, etc.
In interwar Poland, Jewish, German and Ukrainian parties never attracted all Polish Jews, Germans and Ukrainians of whom some were members of 'national' ideological Polish parties, mostly the Socialist and Communist parties, who were considered more open-minded than the conservative or nationalist parties.
Some ethnic parties only take part in substatal electoral competition, thus making them somewhat invisible to outside observers: the SSW in Schleswig-Holstein, the German parties in Denmark and Poland, the Roma parties in Slovakia.
It can occur that a single 'supra-ideological' party achieves, with varying shades of success, the representation of a whole ethnic group, as for the Svenska Folkpartiet in Finland, the South Schleswig Voter Federation for Danes and Frisians in the German Land of Schleswig-Holstein, the Unity for Human Rights Party for Greeks in Albania, the Slovenska Skupnost (Slovenska Skupnost, Slovenska Skupnost) for Slovenes in Northeastern Italy, the Movement for Rights and Freedoms for Turks in Bulgaria, the Democratic Union of Hungarians in Romania.
In most cases, ethnic parties compete inside electoral systems where voters aren't compelled to vote according to ethnic affiliations and may vote too for 'non ethnic', 'transethnic' or 'supraethnic' ideological parties. In most Near Eastern Arab countries, the only such parties were the Communist parties, whose founding fathers and subsequent leaders came mostly from the Jewish, Armenian, Kurdish or Shi'ia minorities. The socialist movement in Thessaloniki (present Northern Greece) during the last decade of the Ottoman Empire was divided across ethnic lines between the Sephardi Jews (who formed the majority of the population), the Bulgarian and Macedonian Slavs and the Greeks, but all groups united when it came to election time.
The Jewish and Armenian (Dashnak, Ramgavar, or Hentchak) parties belong to this category, as well as the international sections of national parties, such as the (U.S.) Republicans Abroad and Democrats Abroad, the (French) Parti Socialiste's Fédération des Français de l'Etranger or the American and European branches of the Israeli Likud and of the Kuomintang (Nationalist Party of China).
There can also be specific political groupings representing members of a national community living abroad, such as the Association démocratique des Français de l'étranger - Français du Monde (left-wing) and the Union des Français de l'Etranger (right-wing), both competing for seats in the Assemblée des Français de l'étranger (Assemblée des Français de l'étranger), or the various political lists competing for the Comitati degli italiani all'estero (COMITES).