Erba may refer to:
Places China Erba, Wuwei County (二坝镇), town in Wuwei County, Anhui Erba, Harbin (二八镇), town in Hulan District, Harbin
Italy Erba, Lombardy, a comune in the Province of Como Caslino d'Erba, a comune in the Province of Como, Lombardy Lurago d'Erba, a comune in the Province of Como, Lombardy
People Erba-Odescalchi, an Italian aristocratic family Luciano Erba, an Italian poet