Why do you want to change your name? I have an Indian friend whose name translates to “the destroyer of evil”. How cool is that? I have heard of certain names being associated with certain things. But there is no way to predict that. Some people would be against hiring a woman, so would take out applications of people named “Mary” or “Barbara”. You can’t predict what your future employer would or would not do. By the way, I don’t think this practice is right or acceptable, I’m just giving an example. As for the name you’ve chosen, “Martinez” isn’t really an English name, it is more Spanish or Mexican. Also, I would say that it is mainly a surname, not a first name.