奧地利共和國捷克斯洛伐克社會民主工人黨(英语:Czechoslovak Social Democratic WorkersParty in the Republic of Austria)(捷克語:Československá sociálně demokratická strana dělnická
歐洲政黨(英語:European Political Party),正式名称為歐洲層級政黨(political party at European level),非正式名称為歐洲黨(Europarty),是指在歐盟內部跨国运作的政黨。歐洲政黨受到《歐盟關於歐洲政黨和歐洲政治基金會第1141 / 2014號法規(EU
Communiqué on the Meeting of Representatives of the Governments and the Communist and Workers' Parties of Bulgaria, Czechoslovakia, Hungary, Romania and the Soviet