Noun + preposition: 'Interesse an' (interest in, + dative)

The noun (das) Interesse (interest) governs the preposition an with the dative. The related adjective behaves the same way: interessiert an + Dativ.

• Sie hat großes Interesse an Kunst. - She has a great interest in art.
• Sein Interesse an der Politik wuchs. - His interest in politics grew.
• Wir haben Interesse an einer Zusammenarbeit. - We are interested in a collaboration.

Because an governs the dative here, the markers are dative: an der Kunst, an dem (am) Thema, an den Ergebnissen. The phrase often appears with haben or zeigen: Interesse an etwas haben/zeigen.

Common mistakes:

• Translating English "interest in" with the wrong preposition (Interesse in / für are wrong here) - use an + Dativ.
• Using the accusative after an: Interesse an der Sache, not an die Sache.
• For a clause, use daran: Ich habe Interesse daran, mehr zu erfahren.

'Interesse an' (interest in) takes 'an' + dative.

Fixed preposition 'an' with the dative.

'Interesse an' steht mit 'an' + Dativ.