Delete a meeting recording in Teams

Recording owners (either the person who started the recording, or any additional owners named by that person) are the only people who can delete recordings.

1. In Teams, go to the recording in the chat history and click More options  > Open in Microsoft Stream.

2. 

3. On the Microsoft Stream portal, click  > Delete.

Source:

https://support.office.com/en-us/article/delete-a-meeting-recording-in-teams-b1ff8102-72da-4a6c-9979-d03a55d9b65d