| Type: | Bishop |
| Honorific Prefix: | The Most Reverend |
| Ferdinand Fonseca | |
| Honorific Suffix: | D.D. |
| Auxiliary Bishop Emeritus of Bombay | |
| Church: | Roman Catholic Church |
| Archdiocese: | Archdiocese of Bombay |
| Province: | Bombay |
| Metropolis: | Bombay |
| See: | Bombay (emeritus) |
| Term Start: | 2 December 2000 |
| Term End: | 02 October 2015 |
| Successor: | Bishop Agnelo Rufino Gracias |
| Other Post: | Titular Bishop of Aquae in Mauretania.(1980-2015) |
| Ordination: | 5 December 1954 |
| Consecration: | 29 June 1980 |
| Consecrated By: | Archbishop Simon Pimenta |
| Rank: | Bishop-Priest |
| Birth Name: | Ferdinand Joseph Fonseca |
| Birth Date: | 2 December 1925 |
| Birth Place: | Umerkhadi, Bombay. |
| Death Place: | Holy Family Hospital Mumbai, Maharashtra, India |
| Buried: | St Peter's Cemetery, Haines Road. Mumbai |
| Nationality: |  Indian |
| Religion: | Roman Catholic |
| Residence: | Mumbai, India |
| Parents: | Jose Fonseca(Father) Julia Fonseca(Mother) |
| Previous Post: | Titular Bishop of Aquæ in Mauretania.(1980-2015) Auxiliary Bishop of Bombay.(1980-200) |
| Alma Mater: | St. Joseph's High School, Umerkhadi. St Xavier's College. St Pius X Seminary Mumbai. |
| Bishop Name: | Ferdinand Joseph Fonseca |
| Dipstyle: | Bishop |
| Offstyle: | Your Excellency |
| Relstyle: | The Most Reverend |
Ferdinand Joseph Fonseca (December 2, 1925 - October 2, 2015) was a Roman Catholic bishop.
Ordained to the priesthood in 1954, Fonseca was named auxiliary bishop for the Roman Catholic Archdiocese of Bombay, India in 1980 and retired in 2000.[1]