Address Cover Letter to Named Individual

There should be very few times in your job-search correspondence that you do not know the name of the person you are writing to. For example, when you are writing to a blind email or postal box. Even if a want ad says to send the letter to the Human Resources Director, it is quite easy to call the company and get the name of the director - in fact, doing just that action often results in your letter and resume getting more notice because it shows initiative.

But to answer your question. On those rare times when you do not know the name or gender of the person you are writing to, “sir or madam” is marginally acceptable. Better forms, in my experience, include: “Dear box holder,” “Dear hiring manager,” or “Dear friends.” While there is nothing wrong with “sir or madam,” it is too stilted for modern communication.

So, remember that your goal is always to try and track down the name of the individual. As a last resort, use one of the above salutations. Lots more information on cover letters can be found at the Quintessential Careers Cover Letter Tutorial.