harm somebody's reputation
damage somebody's reputation

A market success for a professor may even damage his reputation in the trade.

It's not as though his reputation was damaged by the article.

By doing nothing about this, he said, the industry damages its reputation.

Losing such a case, he said, could damage a company's reputation.

It is things like this which damage the Union's reputation among its citizens.

It would damage her reputation, if she cared about such things.

He could have called for the city watch to arrest the man, but his reputation was already damaged.

But their reputations, at least for the moment, are damaged by the case.

I think his reputation has been damaged more than enough.

He had a partner who was threatening to damage his reputation.