Fabio Vio Ugarte (born 1949) is a Chilean lawyer who has served as ambassador of Chile in different countries.

[2][3] He has also gained prominence in Chile as an international analyst,[4] specifically on the affairs of Peru.

In 1996, he was Pro-Tempore Secretary of the Ibero-American Summit held in Santiago de Chile.

[1] From 2002 to 2006 he was ambassador of Chile to Hugo Chávez's Venezuela[1] in replacement of the radical Marcos Álvarez, who recognized Pedro Carmona Estanga's de facto government after the 2002 coup attempt.

In 2008, he was appointed by President Michelle Bachelet as ambassador of Chile to Paraguay.