Castro can refer to:

• Fidel Castro
• Raúl Castro Fidel's younger brother
• Ramon Castro Fidel's older brother
• Juana Castro Fidel's sister
• The Castro, a famous gay-oriented neighborhood in San Francisco, California
• Castro Street, the primary street in that neighborhood
• Castro, an Italian city destroyed in 1649
• Castro (village), a term for a certain kind of village in the Galician language