Fernando Alexis Nieve [knee-EH-veh] (born July 15, 1982) is a Venezuelan former right-handed professional baseball pitcher.

Current Minor League Pitching Coach at Pittsburgh Pirates Nieve was signed by the Houston Astros as an amateur free agent in 1999.

He missed the 2007 season with after undergoing Tommy John surgery and returned to appear in 11 games in 2008, all in relief and as 0–1 with an 8.44 ERA.

In March 2009, Nieve was claimed off waivers by the New York Mets and was called to the major league team in June when reliever J. J. Putz was placed on the disabled list.

In, 2010, due to his early workload, Mets' TV announcers began referring to him as "Nightly" Nieve.

On December 1, 2010, Nieve signed a minor league contract with the Pittsburgh Pirates, which included an invite to spring training.

On April 11, 2017, Nieve signed with the Rojos del Águila de Veracruz of the Mexican Baseball League.

[6] On July 2, 2018, Nieve signed with the Tecolotes de los Dos Laredos of the Mexican League.