Giovanni Colonna
Giovanni Colonna or John Colonna may refer to:
- Giovanni Colonna (died 1245), cardinal of the Roman Catholic Church
- Giovanni Colonna (archbishop), archbishop of Messina, nephew of the cardinal
- Giovanni Colonna (historian), Dominican and writer, friend of Petrarch
- Giovanni Colonna (cardinal, 1295–1348), Roman Catholic cardinal
- Giovanni Colonna (cardinal, 1456–1508), Roman Catholic cardinal
- Giovanni Paolo Colonna, Italian musician and composer
- Giovanni Colonna (archaeologist), Italian scholar of ancient Italy
- John Colonna, Puerto Rican child who disappeared along with his sister Gianinna