If you completed a degree in your home country and want to have it recognized, you should check the anabin website to know how your degree is assessed in Germany. Use the sections on higher education degrees and institutions (which tells you if your university or high school is recognized in Germany).
For the actual recognition of a higher-education degree such as a Bachelor’s, Master’s or a professional qualification, please make an appointment with the closest counseling office of the IQ Netzwerk. The recognition of your degree is necessary for working in many professions in Germany, but not for all.
For more detailed information on the recognition of your qualifications, please read this article from the website hop-on.