Namesakes
Characters in Roman Mythology:
1 character
Ilia (f) 
Olympic Medalists:
2 silver, 1 bronze
(silver) Ilia Averbukh 2002 figure skating
(bronze) Ilia Chernousov 2014 cross-country skiing
(silver) Ilia Karpenkov 2020 3x3 basketball
Saints:
1 saint
Saint Ilia Chavchavadze 1837-1907