| Type: | Bishop |
| Honorific-Prefix: | His Excellency |
| Louis-Paul-Armand Simonneaux | |
| Bishop Emeritus of Versailles | |
| Church: | Roman Catholic Church |
| See: | Diocese of Versailles |
| Term: | 1967–1988 |
| Predecessor: | Alexandre Renard |
| Successor: | Jean-Charles Thomas |
| Ordination: | 10 March 1946 |
| Consecration: | 26 November 1967 |
| Consecrated By: | Mgr Paul Joseph Marie Gouyon |
| Birth Date: | 19 January 1916 |
| Birth Place: | Servon-sur-Vilaine, France |
| Coat Of Arms: | Blason_Mgr_Louis_Simonneaux.svg |
Louis-Paul-Armand Simonneaux (19 January 1916 - 22 January 2009) was a French prelate of the Roman Catholic Church and was one of the oldest living bishops and one of oldest French bishops at the time of his death.
Simonneaux was born in Servon-sur-Vilaine, France and was ordained a priest on 10 March 1946. He was appointed to the Diocese of Versailles on 30 September 1967 and ordained bishop on 26 November 1967. He remained bishop of Versailles until 4 June 1988.