Don Juan is based on the legendary Spanish nobleman Don Juan Tenorio.
There is no definitive answer to this question as it depends on your definition of a “womanizer.” Some people might say that Don Juan is a womanizer because he has many sexual partners, while others might say that he is not a womanizer because he does not have any real emotional connection with the women he sleeps with. Ultimately, it is up to you to decide what you believe.