As of now, there is no known dedicated Jain temple or formal Jain center specifically in Bonn.

However, there are Jains living and organizing activities in nearby cities:

• Cologne (Köln) – listed among German cities with an active Jain presence (North Rhine–Westphalia region, same state as Bonn).
• Other German cities with Jain groups include Frankfurt, Dortmund, Düsseldorf, Stuttgart, Munich, Berlin, Hamburg, etc. ( jaincommunityeurope.com)

For someone staying in or near Bonn, these are practical options:

1. Connect with Jain groups in NRW (Cologne / Düsseldorf region)

- Look for “Jain community Germany / Jain Community Europe / Jain Sangh Germany” online. They maintain contacts for Jains across German cities and can usually tell you if any families or small satsaṅg groups are in Bonn or Cologne. ( jainev.com)

1. Ask local Indian associations in Bonn/Cologne

- Indian student or cultural associations in Bonn–Cologne often know which families are Jain and may help you connect informally with them. ( isa-bonncologne.org)

1. Online Jain satsang

- Many Jains in Europe join online pravachans, Paryushan programs, and pāṭhshalā from India or UK/Europe; German Jains commonly rely on this since there is no physical derāsar in Germany yet. ( en.wikipedia.org)

So: near Bonn, your best bet is to connect with the Jain presence in Cologne/NRW and wider “Jain Community Germany/Europe”; they can tell you if there is an informal group already meeting in Bonn.