| Honorific-Prefix: | The Reverend |
| Yvon Ambroise | |
| Bishop Emeritus of Tuticorin | |
| See: | Tuticorin |
| Appointed: | 1 April 2005 |
| Term Start: | 18 May 2005 |
| Term End: | 24 February 2019 |
| Predecessor: | Peter Fernando |
| Successor: | Stephen Antony Pillai |
| Ordination: | 23 December 1967 |
| Ordained By: | Ambrose Rayappan |
| Consecration: | 18 May 2005 |
| Consecrated By: | Pedro López Quintana |
| Birth Name: | Yvon Ambroise |
| Birth Date: | 1942 8, df=yes |
| Birth Place: | Pondicherry |
| Religion: | Catholic |
| Parents: | Ponnu Tambi Ambroise, Antoinette Ambroise |
| Motto: | Life in its fullness (John 10:10) |
| Coat Of Arms: | Coa Yvon Ambrose.svg |
| Dipstyle: | His Excellency |
| Offstyle: | Your Excellency |
| Relstyle: | The Most Reverend |
Yvon Ambroise (born 30 August 1942) is the Bishop Emeritus of Tuticorin. He was appointed on 1 April 2005 and was consecrated by Pedro López Quintana on 18 May 2005. Bishops Antony Anandarayar and Peter Fernando acted as co-consecrators. He succeeded Bishop Peter Fernando to become the sixth bishop of Tuticorin. His term ended on 24 February 2019 and he was succeeded by Bishop Stephen Antony Pillai.
He was born to Ponnu Tambi Ambroise and Antoinette Ambroise in Pondicherry, India. He was ordained a priest at Immaculate Conception Cathedral, Pondicherry by Archbishop Ambrose Rayappan.[1]
He has held the following positions:[1]