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Exhibit 8.1

Subsidiaries of the Registrant
Legal Name of SubsidiaryJurisdiction of Organization
trivago Services B.V.
trivago Services US LLC
trivago Spain S.L.U.
Base7booking.com S.à.r.l. (in liquidation)
Base7Germany GmbH
Myhotelshop GmbH1
Myhotelshop Spain S.L.1
TGO (Thailand) Ltd.
trivago Hong Kong Ltd.
trivago (Shanghai) Information Consulting Co. Ltd.
trivago Hotel Relations GmbH
trivago Hotel Relations Spain S.L.U.
Tell Charlie B.V.
Stichting trivago Warehousing
The Netherlands
United States
Spain
Switzerland
Germany
Germany
Spain
Thailand
Hong Kong
China
Germany
Spain
The Netherlands
The Netherlands

(1) We hold a share in myhotelshop GmbH of 49.0% and we do not have a controlling financial interest in myhotelshop. Myhotelshop Spain S.L. is a 100% subsidiary of myhotelshop GmbH.