List of members of the International Democrat Union
List of members of the IDU
- Argentina: Justicialist Party
- The Liberal Party of Australia
- Austrian People's Party
- National Independence Party of Azerbaijan (NIPA)
- Nationalist Democratic Action (Associate Member) Bolivia
- Conservative Party of Canada
- Independent Democratic Union Chile
- National Renewal Chile
- Colombian Conservative Party
- Democratic Coalition Cyprus
- Civic Democratic Party Czech republic
- Conservative People`s Party Denmark
- Social Christian Reformist Party Dominican Republic
- Nationalist Republican Alliance El Salvador
- Pro Patria Union Estonia
- National Coalition Party Finland
- Union pour un Mouvement Populaire (UMP) France
- Christian Democratic Union Germany
- Christian Social Union Germany
- New Patriotic Party (Associate Member) Ghana
- New Democracy Greece
- New National Party (NNP) (Associate Member) Grenada
- National Advancement Party Guatemala
- National Party of Honduras
- Fidesz - Hungarian Civic Union
- Democratic Party of Kenya (Associate Member)
- The Grand National Party Korea (S)
- Nationalist Party (Associate Member) Malta
- Democratic Party (Associate Member) Mongolia
- Mozambique National Resistance (Associate Member)
- Democratic Turnhalle Alliance of Namibia (DTA) (Associate Member)
- New Zealand National Party (NZNP)
- Conservative Party Norway
- Social Democratic Party Portugal
- Kuomintang (KMT) (Taiwan)
- Union of Right Forces Russia
- People's Action Movement (PAM) (Associate Member) St Kitts
- New Democratic Party (NDP) (Associate Member) St Vincent and the Grenadines
- Slovenian Democratic Party (SDS) Slovenia
- New National Party (NNP)(Associate Member) South Africa
- Popular Party Spain
- United National Party Sri Lanka
- Moderate Party Sweden
- Conservative & Unionist Party (UK)
- Republican Party (US)