This question is to do with the royal titulary or the kings' titles that together were used in formal inscriptions.

"From the Old Kingdom onward, each king adopted a royal titulary that included five names. Certain aspects of the titulary emphasized features common to all rulers, such as the fact that all kings were protected by the goddesses of predynastic Egypt known as the 'Two Ladies' and that each ruler was the incarnation of the god Horus." Rosalie David - Handbook to Life in Ancient Egypt

One was known as The Horus Name.

What were the other four names?

*squaaaaaaaawk!*