I've worked for box stores, a pharmacy, two private schools, a City Hall and my University. Out of all those places the only place that didn't require my previous names or my legal name was one of the private schools I worked for, but I was also getting paid under the table. If you are having your name change for sure in a couple of weeks and it won't hurt you financially, I would say wait until its approved. That way you can put your name without potentially causing any problems with background checks. Having done a couple in my time, they can get easily get muddled if you are doing a name change while the background check is being performed. One woman who applied for a job with my old company was actually declined originally because she was going through a divorce and put her maiden name down. She later got the job, but it was a huge hassle for her and caused a lot of confusion in the office.