Namesakes
Notable Philosophers and Thinkers:
1 mathematician
Apollonius of Perga (a.k.a. Apollonios) c. 262-c. 190 BC 
Notable Scientists and Inventors:
1 astronomer
Apollonius of Perga (a.k.a. Apollonios) c. 262-c. 190 BC
Saints:
4 saints
Saint Apollonius of Alexandria (a.k.a. Apollonios) ?-c. 250
Saint Apollonius of Sardis (a.k.a. Apollonios) ?-c. 250
Saint Apollonius of Egypt (a.k.a. Apollonios) ?-c. 305
Saint Apollonius of Antinoë (a.k.a. Apollonios) ?-c. 305