Arnaldo Sánchez Catalán (born 18 September 1966) is a Filipino prelate of the Catholic Church who has been an apostolic nuncio since 2022, currently Apostolic Nuncio to Rwanda and titular Archbishop of Apollonia.

Arnaldo Sánchez Catalán was born on 18 September 1966 in Manila, Philippines.

He entered the diplomatic service of the Holy See on 1 July 2001, and served in the pontifical representations in Zambia, Kuwait, Mexico, Honduras, Turkey, India, Argentina, Canada, Philippines and Taiwan.

On 31 January 2022, Pope Francis appointed him Titular Archbishop of Apollonia and Apostolic Nuncio to Rwanda.

[1][2] He was ordained to the episcopacy at the Manila Cathedral on February 11, 2022, with Cardinal Luis Antonio Tagle, Prefect of the Congregation for the Evangelization of Peoples as the Principal Consecrator, and Cardinal Jose Advincula, Archbishop of Manila and Archbishop Charles John Brown, Apostolic Nuncio to the Philippines, as Co-Consecrators.