Namesakes
Fictional Characters from Song Titles:
1 character
(character) Luca 2006 Luca 
Notable Artists:
1 sculptor
Luca della Robbia c. 1400-1481
Notable Athletes:
1 rugby
(rugby) Luca Morisi 1991-
Notable Filmmakers:
1 director/producer
Luca Guadagnino 1971-
Notable Philosophers and Thinkers:
1 mathematician
Luca Pacioli c. 1447-1517
Olympic Medalists:
2 bronze, 2 silver, 1 bronze/silver
(bronze) Luca Sacchi 1992 swimming - 400 m medley
(bronze) Luca Giustolisi 1996 water polo
(silver) Luca Garri 2004 basketball
(bronze/silver) Luca Agamennoni 2004; 2008 rowing
(silver) Luca Tesconi 2012 shooting
Saints:
1 blessed, 1 saint
Saint Leoluca (a.k.a. Luca) c. 815-c. 915
Blessed Luke Belludi (a.k.a. Luca) 1200-1285