Namesakes
Fictional Characters from Books:
1 character
Ilsa Brandes 1946 Ilsa 
Fictional Characters from Movies:
1 character
Ilsa Lund 1942 Casablanca
Hurricanes and Tropical Storms:
1 hurricane
Hurricane Ilsa 1958
Olympic Medalists:
1 silver
(silver) Ilsa Konrads 1960 swimming - 4x100 m freestyle relay