Guanabara

Guanabara may refer to:
 * Guanabara (state), a former state in Brazil
 * Guanabara Bay, a bay in Brazil
 * Guanabara (Joinville), a neighborhood in Santa Catarina state, Brazil
 * Jardim Guanabara, a neighborhood in Rio de Janeiro state, Brazil
 * Guanabara Esporte Clube
 * Taça Guanabara
 * MV Guanabara