Since the early 2000s, the Europeanization of metropolitan regions from below takes place in a political process with variable geometry and differential intensity. While ‘the metropolitan’ as a political label and research topic has witnessed an impressive upswing in Europe, a concrete understanding of the Europeanization of metropolitan regions is still missing. This article highlights and explains the Europeanization of metropolitan regions in Europe as particular subnational authorities of which only a small group of forerunners recently develop the capacity to act at a European scale. The Europeanization of metropolitan regions is conceptualized as a political process from below, going beyond the initial definition of Europeanization as domestic impact. Thereby, the article lays particular focus on ‘where’ and ‘when’ the European dimension of metropolitan regions is produced. Moreover, the analysis puts the emerging European engagement of metropolitan regions into a larger perspective by discussing it in the context of the increasing international agency of cities. The article questions, first, how a European dimension has developed in metropolitan policies and, second, what modes of engagement contribute to the metropolitan regions’ increasing Europeanization. Empirically, the metropolitan regions of Lyon and Stuttgart present examples of Europeanized metropolises with an exceptional engagement. Comparing modes of engagement in these two metropolitan regions allows understanding the particular characteristics contributing to the formation of an archetype of Europeanized metropolis.

自2000年代初以来，大都市地区的欧洲化是在政治过程中发生的，其政治格局具有可变性和强度差异。尽管“大都市”作为政治标签和研究主题在欧洲经历了令人印象深刻的飞速发展，但仍缺少对大都市地区欧洲化的具体理解。本文重点介绍并解释了欧洲大都市地区的欧洲化趋势，这些国家是特定的地方政府，最近只有一小部分先行者发展了在欧洲范围内采取行动的能力。大都市区的欧洲化从下面被概念化为一个政治过程，超出了欧洲化对国内影响的最初定义。从而，这篇文章特别着重于大城市地区在欧洲产生的“地点”和“时间”。此外，通过在国际城市代理机构不断增加的背景下进行讨论，该分析使欧洲大都市地区的新兴参与度有了更大的视野。文章首先提出疑问，欧洲在大城市政策中如何发展，其次，什么样的参与模式促进了大城市地区日益欧洲化。从经验上讲，里昂和斯图加特的大都市地区以高度参与的方式展示了欧洲化大都市的例子。比较这两个大都市地区的参与模式，可以了解有助于形成欧洲化大都市原型的特定特征。