A sica is an Illyrian, Thracian, Dacian, and Roman sword or dagger.

Sica may also refer to:

• Mario Sica (born 1936), Italian diplomat
• Jessica Jung (nicknamed "Sica") (born 1989), Korean American singer
• Sica Ho (born 2000), Hong Kong singer

SICA may refer to:

• Central American Integration System (Spanish: Sistema de la Integración Centroamericana)
• Solomon Islands Christian Association
• South Inter-Conference Association
• South Indian Cultural Association, Hyderabad
• South Indian Cultural Association, Indore
• Subud International Cultural Association

• Sicarius (disambiguation)

This disambiguation page lists articles associated with the title Sica.
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