Nestor Aldave Espenilla Jr. (12 October 1958 – 23 February 2019) was a Filipino banker who served as the fourth governor of the Bangko Sentral ng Pilipinas (BSP) from 2017 until his death in 2019.

[2][6] After graduating from the University of the Philippines in 1981, Espenilla was hired by the Bangko Sentral ng Pilipinas as a debt analyst.

[6] Known to his co-workers as "Nesting",[7] Espenilla steadily rose through the ranks, earning his stripes in economic research and international operations, before he was appointed by Philippine president Gloria Macapagal Arroyo in 2005 as deputy governor for supervision and examination sector[8] under the administration of his predecessor Amando Tetangco Jr.[1][2][3] When Philippine president Benigno S. Aquino III took office in 2010, Tetangco's term would have expired, but Aquino reappointed him and his deputies—including Espenilla—to their positions.

It was revealed in the investigation that the bank incurred P6.09 billion in deposit liabilities after a build-up of cash advances to its affiliate businesses.

He bested other contenders for the position, including former Philippine President Gloria Macapagal Arroyo, fellow BSP deputy governor Diwa Gunigundo, EastWest Bank vice chairman and CEO Antonio Moncupa Jr. and former Trade and Industry Secretary Peter Favila.

On February 16, 2019, almost a week before his death, President Duterte signed the act into law effectively "strengthening BSP's capacity to foster price and financial stability".

[17] Espenilla was married to Maria Teresita Festin-Espenilla, a microfinance specialist for the United States Agency for International Development (USAID), and had a daughter and two sons with her.