(29 August 1901 – 4 July 1977) was the first Archbishop of Singapore, installed on 18 December 1972 until his retirement in 1976.

Born in Saint-Étienne-de-Baïgorry, France, he was ordained a priest on 29 May 1926 at the age of 24, and became a clergyman of the La Société des Missions Etrangères.

On 21 January 1947, Olçomendy was officially installed as Bishop of Malacca and Singapore at the Cathedral of the Good Shepherd, serving in the position until he was appointed Archbishop of Malacca on 19 September 1953, at the age of 52.

He took office as Metropolitan Archbishop of Malacca-Singapore on 25 February 1955, and as President of Catholic Bishops’ Conference of Malaysia, Singapore and Brunei in 1964.

Olçomendy took on the new office as the Archbishop of Singapore on 18 December 1972, until retiring in 1976.